I'm fully aware that without the Africa maps, this mod would not be where it is at but I find most of the maps to be an unenjoyable grind fest, especially on a full server. As I've said, I'm in the minority on this one and I should clarify that the mini map icon definitely is not game breaking for me, otherwise I would not occasionally come back to play a few games.
Yes, a nicely timed combined attack is something I've seen maybe once or twice in over five years of playing this mod (mind you, not as regularly as most of the players here). In contrast to a mod like PR, there's almost no incentive to work as a team except for driving a vehicle as bow gunner or spotting for artillery. The Squad Leader serves no other function than to be a mobile spawn, a role I regularly take because I'm not a super active player to begin with so sitting back and sniping off enemies fits this style. That or sitting in a bush without moving to create a flanking spawn. The fact that first aid and ammo kits plus revive function for infantry were taken out of the mod for understandable reasons (unstoppable zombie squads) just reinforces that. The SL is just a spawn point from which the squad mates just rush to the next flag without coordination, die, respawn, rinse and repeat. The moment someone has made it past the defenses, everyone leaves your squad to spawn on the sneaky new squad leader anyway. The fact that there are a handful of "real" squad leaders that manage to create a dynamic by using VOIP and being fun in general does not change the overall feeling for me. Not that FH should take the vBF2 mechanics but those managed to make random people cooperate okay to win a match even if noone used VOIP.
That last guy who remains in the vehicle doing nothing at all would be the SL then since if he dies, he stops serving any purpose
TL;DR: I don't think the teamwork Slayer mentioned is often in effect on a public server with randoms.
Sounds like a good idea that would also greatly reduce the amount of teamkilling. Locking civilian cars seem odd though. How would you "balance" them between the teams then? Oh, so you can see when a flag is contested?