The game will spawn players in the spot it thinks will put them in the least amount of harm. So, yes, you can claymore spots to stop them from spawning, but to be realistic, you need a 6 person team to effectively spawn trap. You can't do it alone.
ok thanks
^
i rarely play in a party of 6 because although you win alot more, you get alot fewer kills.
with a team of good players they'll often beat you to a streak or have their killstreak rewards stopping yours, i might have to get a party together to give this a try though sounds like it could be alot of easy kills and a few laughs
i believe the spawns are fixed on capture the flag as well, trapping the enemy at their flag is very effective so i'd bet spawn kiling on CTF would be viable too once you found the spawn points.