I just tried this and it works.  I placed a player unit and an AI machinegunner named dude in the editor.  Then from the debug console I execute this code and he fires full auto with short pauses between bursts.  Unit needs to be in behaviour COMBAT, or he shots into the ground. dude setbehaviour "COMBAT"; _logic = createGroup west createUnit ["Logic", [0,0,0], [], 0, "NONE"]; _n = [dude, _logic] spawn { params["_dude","_logic"]; sleep 1; // give unit time to raise his weapon in combat mode { _logic action ["useWeapon", dude, dude, 2]; // 2 is burst mode sleep .3; } foreach [1,1,1,1,1,1,1,1,1,1,1,1]; }; You probably want to use a while loop instead of a foreach loop.   I was just being lazy in my loop selection for a quick example.  You may also want to have other conditions liking pausing loop during reload, some way to terminate loop when some condition is met (time elapsed, player commands to stop via addaction, or whatever).