First of all I need to say that the game is great fun, and I really enjoy playing it.
But still, although I should not be a complete noob any more, I still don't get why it sometimes has to happen that you can't spawn any more.
I think this should be removed completely. One day I was playing AAS, and almost the entire enemy team consisted of one clan. A single BRDM-2 was able to hold down half of our team on the southern flank, made like 30 kills in five minutes, and before the map has passed 10 minutes, all flags were taken.
But worst thing was: I couldn't spawn any more!
Can someone give me a good, reasonable gameplay argument to not being allowed to spawn in your base when all the flags in the center of the map are lost? I mean, the losing team should get a chance to turn the tables, but instead it's enough to have a bad start and your team won't make it back into the game most likely.
It's like disabling the medic class if your team has the fewer tickets left. It favours the winner, is a big disadvantage to the loser, it is completely irrational and frustrating as fuck.
I had to spend like five to ten minutes watching the map. When the round was over and the new map came, the server has lost almost half of its population. I wouldn't call that smart game design. Motivation managment should always be taken into concern when creating a gamemode.

