STO

From BattlegroundWiki

STO (Server Tracked Objects)

Once a pipedream, recent versions of the game have introduced the first two instances of STOs into the game world.

First item is the UMSP (Unmanned Mobile Spawn Point), the MSP becomes a static object when deployed, a player can then respawn as any infantry unit at the mobile spawn and continue to town etc. Players who deploy mobile spawn points get no points for infantry spawning from them, if they choose to leave it "unmanned".

The second item to be made into an STO were the smoke grenades. When you despawn and respawn the smoke is still visible (previously it would have disappeared).