with the friendly troop thing.. which I halfway believed, I always figured, you'd need to AT LEAST bring 'em from another base -- just like field supplies from a field cant resupply the same field. Even so, I'd tried it before, and it didnt _seem_ to work with 8 enemy troops in, but it kinda seemed plausible so I wasn't sure if they just got another m3 in, or someone just topped it off with a jeep..
Rolex's top myths are spot on --- especially the "drop supplies on concrete" one, which is demonstrably false (been testing it myself recently). So I now accept that friendly troops dont do jack, even tho they appear to go in the maproom and you hope they are throwing grenades and bayoneting the 6 enemy troops in there..
on related note though.. how long do enemy troops in the maproom count? 30 minutes? an hour? ahh wait..

I guess probably until a town building pops or in the case of a port or vbase, an ack pops -- thats the only way to "reset" the enemy troops. yeah?