Here are two game modes, called Firefight and Countdown. One has fairly random respawns and it's a spazzy gametype, yet action packed, and the other has no respawns but with tactical gameplay. If only we could develope a gamemode that combined the action of the first with the tactics of the second...
Oh wait, they did. It's called Territory and was the basis for the first game.
I have no idea why these gametypes are included at all. Firefight is even more spazzy than CoD TDM because you spawn under fire, and whoever decided that 'Insta-kills, long round time, only respawns you get are when defenders have taken up prepared positions and can immediately fire at you' was a good idea for Countdown needs a smack.
/rant