diff --git a/config.ini b/config.ini
index b37d439..86c280d 100644
--- a/config.ini
+++ b/config.ini
@@ -37,6 +37,8 @@ xdtdata=tdata/xdt.json
 mobdata=tdata/mobs.json
 # path json
 pathdata=tdata/paths.json
+# gruntwork output (this is what you submit)
+gruntwork=tdata/gruntwork.json
 
 # account permission level that will be set upon character creation
 # 1 = default, will allow *all* commands
diff --git a/src/CNShardServer.cpp b/src/CNShardServer.cpp
index 029e214..0a5dae7 100644
--- a/src/CNShardServer.cpp
+++ b/src/CNShardServer.cpp
@@ -6,6 +6,7 @@
 #include "CNShared.hpp"
 #include "settings.hpp"
 #include "Database.hpp"
+#include "TableData.hpp" // for flush()
 
 #include <iostream>
 #include <sstream>
@@ -56,6 +57,7 @@ void CNShardServer::periodicSaveTimer(CNServer* serv, time_t currTime) {
         Database::updatePlayer(pair.second.plr);
     }
 
+    TableData::flush();
     std::cout << "[INFO] Done." << std::endl;
 }
 
diff --git a/src/ChatManager.cpp b/src/ChatManager.cpp
index a5314b1..59dae23 100644
--- a/src/ChatManager.cpp
+++ b/src/ChatManager.cpp
@@ -99,7 +99,7 @@ void mssCommand(std::string full, std::vector<std::string>& args, CNSocket* sock
 
     if (args.size() < 3) {
         ChatManager::sendServerMessage(sock, "[MSS] Too few arguments");
-        ChatManager::sendServerMessage(sock, "[MSS] Usage: /mss <route> <add/remove/goto/clear/test/export> <<height>>");
+        ChatManager::sendServerMessage(sock, "[MSS] Usage: /mss <route> <add/remove/goto/clear/test> <<height>>");
         return;
     }
 
@@ -167,26 +167,16 @@ void mssCommand(std::string full, std::vector<std::string>& args, CNSocket* sock
             return;
         }
 
-        // IMPROMPTU LERP
-        int speed = 1500; // TODO: make this adjustable
-        std::queue<WarpLocation> path;
-        WarpLocation last = route->front(); // start pos
-        PlayerManager::sendPlayerTo(sock, last.x, last.y, last.z); // send the player to the start of the path
-        for (int i = 1; i < route->size(); i++) {
-            WarpLocation coords = route->at(i);
-            TransportManager::lerp(&path, last, coords, speed);
-            path.push(coords); // add keyframe to the queue
-            last = coords; // update start pos
-        }
-
-        TransportManager::SkywayQueues[sock] = path;
+        WarpLocation pulled = route->front();
+        PlayerManager::sendPlayerTo(sock, pulled.x, pulled.y, pulled.z);
+        TransportManager::testMssRoute(sock, route);
         return;
     }
 
-    // mss <route> export
+    // for compatibility: mss <route> export
     if (args[2] == "export") {
         ChatManager::sendServerMessage(sock, "[MSS] export on " + std::to_string(routeNum));
-        // TODO: dump route to tdata
+        TableData::flush();
         return;
     }
 
@@ -195,6 +185,11 @@ void mssCommand(std::string full, std::vector<std::string>& args, CNSocket* sock
 
 }
 
+void flushCommand(std::string full, std::vector<std::string>& args, CNSocket* sock) {
+    ChatManager::sendServerMessage(sock, "Wrote gruntwork to " + settings::GRUNTWORKJSON);
+    TableData::flush();
+}
+
 void ChatManager::init() {
     REGISTER_SHARD_PACKET(P_CL2FE_REQ_SEND_FREECHAT_MESSAGE, chatHandler);
     REGISTER_SHARD_PACKET(P_CL2FE_REQ_PC_AVATAR_EMOTES_CHAT, emoteHandler);
@@ -204,6 +199,7 @@ void ChatManager::init() {
     registerCommand("access", 100, accessCommand);
     // TODO: add help command
     registerCommand("mss", 30, mssCommand);
+    registerCommand("flush", 30, flushCommand);
     registerCommand("level", 50, levelCommand);
     registerCommand("population", 100, populationCommand);
 }
diff --git a/src/TableData.cpp b/src/TableData.cpp
index e9d09e6..0a8b1d3 100644
--- a/src/TableData.cpp
+++ b/src/TableData.cpp
@@ -196,6 +196,8 @@ void TableData::init() {
         std::cerr << "[WARN] Malformed mobs.json file! Reason:" << err.what() << std::endl;
     }
 
+    loadGruntwork();
+
     NPCManager::nextId = nextId;
 }
 
@@ -290,7 +292,6 @@ void TableData::constructPathSkyway(nlohmann::json::iterator _pathData) {
 }
 
 void TableData::constructPathSlider(nlohmann::json points, int rotations, int sliderID) {
-
     std::queue<WarpLocation> route;
     std::rotate(points.begin(), points.begin() + rotations, points.end()); // rotate points
     nlohmann::json::iterator _point = points.begin(); // iterator
@@ -336,3 +337,64 @@ void TableData::constructPathNPC(nlohmann::json::iterator _pathData) {
     }
     TransportManager::NPCQueues[pathData["iNPCID"]] = points;
 }
+
+// load gruntwork output; if it exists
+void TableData::loadGruntwork() {
+    try {
+        std::ifstream inFile(settings::GRUNTWORKJSON);
+        nlohmann::json gruntwork;
+
+        // skip if there's no gruntwork to load
+        if (inFile.fail())
+            return;
+
+        inFile >> gruntwork;
+
+        // skyway paths
+        auto skyway = gruntwork["skyway"];
+        for (auto _route = skyway.begin(); _route != skyway.end(); _route++) {
+            auto route = _route.value();
+            std::vector<WarpLocation> points;
+
+            for (auto _point = route["points"].begin(); _point != route["points"].end(); _point++) {
+                auto point = _point.value();
+                points.push_back(WarpLocation{point["x"], point["y"], point["z"]});
+            }
+
+            RunningSkywayRoutes[(int)route["iRouteID"]] = points;
+        }
+
+        std::cout << "[INFO] Loaded gruntwork.json" << std::endl;
+    }
+    catch (const std::exception& err) {
+        std::cerr << "[WARN] Malformed gruntwork.json file! Reason:" << err.what() << std::endl;
+    }
+}
+
+// write gruntwork output to file
+void TableData::flush() {
+    std::ofstream file(settings::GRUNTWORKJSON);
+    nlohmann::json gruntwork;
+
+    for (auto& pair : RunningSkywayRoutes) {
+        nlohmann::json route;
+
+        route["iRouteID"] = (int)pair.first;
+        route["iMonkeySpeed"] = 1500; // TODO
+
+        std::cout << "serializing mss route " << (int)pair.first << std::endl;
+        for (WarpLocation& point : pair.second) {
+            nlohmann::json tmp;
+
+            tmp["x"] = point.x;
+            tmp["y"] = point.y;
+            tmp["z"] = point.z;
+
+            route["points"].push_back(tmp);
+        }
+
+        gruntwork["skyway"].push_back(route);
+    }
+
+    file << gruntwork << std::endl;
+}
diff --git a/src/TableData.hpp b/src/TableData.hpp
index adba0ae..2913f87 100644
--- a/src/TableData.hpp
+++ b/src/TableData.hpp
@@ -9,6 +9,8 @@ namespace TableData {
 
     void init();
     void cleanup();
+    void loadGruntwork();
+    void flush();
 
     int getItemType(int);
     void loadPaths(int*);
diff --git a/src/TransportManager.cpp b/src/TransportManager.cpp
index 84a9f89..45c4e15 100644
--- a/src/TransportManager.cpp
+++ b/src/TransportManager.cpp
@@ -3,6 +3,7 @@
 #include "PlayerManager.hpp"
 #include "NanoManager.hpp"
 #include "TransportManager.hpp"
+#include "TableData.hpp"
 
 #include <unordered_map>
 #include <cmath>
@@ -157,6 +158,12 @@ void TransportManager::transportWarpHandler(CNSocket* sock, CNPacketData* data)
             NanoManager::summonNano(sock, -1); // make sure that no nano is active during the ride
             SkywayQueues[sock] = SkywayPaths[route.mssRouteNum]; // set socket point queue to route
             break;
+        } else if (TableData::RunningSkywayRoutes.find(route.mssRouteNum) != TableData::RunningSkywayRoutes.end()) {
+            std::vector<WarpLocation>* _route = &TableData::RunningSkywayRoutes[route.mssRouteNum];
+
+            NanoManager::summonNano(sock, -1);
+            testMssRoute(sock, _route);
+            break;
         }
 
         // refund and send alert packet
@@ -184,6 +191,21 @@ void TransportManager::transportWarpHandler(CNSocket* sock, CNPacketData* data)
     sock->sendPacket((void*)&resp, P_FE2CL_REP_PC_WARP_USE_TRANSPORTATION_SUCC, sizeof(sP_FE2CL_REP_PC_WARP_USE_TRANSPORTATION_SUCC));
 }
 
+void TransportManager::testMssRoute(CNSocket *sock, std::vector<WarpLocation>* route) {
+    int speed = 1500; // TODO: make this adjustable
+    std::queue<WarpLocation> path;
+    WarpLocation last = route->front(); // start pos
+
+    for (int i = 1; i < route->size(); i++) {
+        WarpLocation coords = route->at(i);
+        TransportManager::lerp(&path, last, coords, speed);
+        path.push(coords); // add keyframe to the queue
+        last = coords; // update start pos
+    }
+
+    SkywayQueues[sock] = path;
+}
+
 void TransportManager::tickTransportationSystem(CNServer* serv, time_t currTime) {
     stepNPCPathing();
     stepSkywaySystem();
diff --git a/src/TransportManager.hpp b/src/TransportManager.hpp
index 7df3825..2967b2d 100644
--- a/src/TransportManager.hpp
+++ b/src/TransportManager.hpp
@@ -30,6 +30,8 @@ namespace TransportManager {
     void transportRegisterLocationHandler(CNSocket*, CNPacketData*);
     void transportWarpHandler(CNSocket*, CNPacketData*);
 
+    void testMssRoute(CNSocket *sock, std::vector<WarpLocation>* route);
+
     void tickTransportationSystem(CNServer*, time_t);
     void stepNPCPathing();
     void stepSkywaySystem();
diff --git a/src/settings.cpp b/src/settings.cpp
index 5f50807..dad9ef3 100644
--- a/src/settings.cpp
+++ b/src/settings.cpp
@@ -24,6 +24,7 @@ std::string settings::NPCJSON = "tdata/NPCs.json";
 std::string settings::XDTJSON = "tdata/xdt.json";
 std::string settings::MOBJSON = "tdata/mobs.json";
 std::string settings::PATHJSON = "tdata/paths.json";
+std::string settings::GRUNTWORKJSON = "tdata/gruntwork.json";
 std::string settings::MOTDSTRING = "Welcome to OpenFusion!";
 int settings::ACCLEVEL = 1;
 
@@ -56,6 +57,7 @@ void settings::init() {
     XDTJSON = reader.Get("shard", "xdtdata", XDTJSON);
     MOBJSON = reader.Get("shard", "mobdata", MOBJSON);
     PATHJSON = reader.Get("shard", "pathdata", PATHJSON);
+    GRUNTWORKJSON = reader.Get("shard", "gruntwork", GRUNTWORKJSON);
     MOTDSTRING = reader.Get("shard", "motd", MOTDSTRING);
     ACCLEVEL = reader.GetInteger("shard", "accountlevel", ACCLEVEL);
 }
diff --git a/src/settings.hpp b/src/settings.hpp
index 19006f3..915eefd 100644
--- a/src/settings.hpp
+++ b/src/settings.hpp
@@ -20,6 +20,7 @@ namespace settings {
     extern std::string XDTJSON;
     extern std::string MOBJSON;
     extern std::string PATHJSON;
+    extern std::string GRUNTWORKJSON;
 
     void init();
 }