Live positions
Everyone in the session on one map, updating every few seconds, in the foreground and with the phone locked.
Airsoft team awareness in milsims
Put your whole team on a shared live map. See where everyone is, drop pins, draw plans, and chat.
Web command post
Field app · iOS & Android
Markers, routes and zones
Drop objectives, rally points and enemy sightings. Draw patrol routes, boundaries and no-go zones everyone sees at once.
Squad chat
Text, photos and voice notes in one session chat. Every new marker is posted there, one tap from the map.
Command post
Run the game from a laptop at app.tac-nav.com: the whole team, every marker and the chat on one big screen.
Ease of use
No setup. No sign up.
Create a session, show the QR code, and your team is on the map. No TAK server to run, no accounts to hand out. Sessions are private: only the people who joined can see anything, and sharing stops when the game ends.
Everything on one map
Squads
Split one session into squads so every marker on the map says whose it is.
Status
Mark yourself hit and your team sees it on your marker and in the member list.
Briefing
Pin the op briefing in the session, where every player can open it before and during the game.
Overlays
Photograph the organiser’s printed or hand-drawn map and pin it onto the real one.
Maps
Several satellite imagery sources, contour lines for the terrain and a live rain radar.
Tools
Tap two points to see how far it is to the objective, the next ridge or the car park.
Audio
Hear new markers and messages in your headphones without taking the phone out.
Media
Send what you see and what you hear straight into the chat, pinned to the moment.
Platforms
The same session on every phone, plus the web command post for whoever runs the game.
Works with Meshtastic.
Pair a Meshtastic radio over Bluetooth and Tacnav sets up an encrypted channel for your session. Positions, markers and chat then go radio to radio over LoRa with no mobile coverage, and anyone who still has signal relays them to the rest of the team.