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After a while we could post this on Infinity Ward forums to see if any of them pick up on it.

Mine would be:
[PS3]
Host Migration.

1. Sometime it dont even migrate ! it just kicks everybody.
2. Migrate's to a worse signal.
3. TWICE now iv had a kill streak (Chopper Gunner and Harrior Strike) and when it migrated it reset my kills and deaths to 0 !
4. Kicks your team mates or puts them on other team.

Invite System

We all loved the Call of Duty 4 invite system so whats wronge with it?
With the new one my inbox just gets packed with message's for invites to MW2 and when i have alot of message's when i try to read one it freezes my ps3 !
If you have a poor connection sometimes you dont get the message for about 5 minutes which is rather stupid.

Guns
M9~Silenced still shows up on UAV.
RDS on FAL is off target.
Model 1887~Akimbo~FMJ is still over powered with range

Spawn System
Not sure about any other game mode's but i only play Hardcore HQ, and on 90% of the maps you only spawn in about 4 places.
I was camping on Afghan and the other team spawned behind me HOW STUPID !

Maps
Same again on HC HQ !
They is a total of 16 maps, and only 12 are played in HC HQ.
Why carnt they just have every map?

Trust me i think if these couple of things were fixed the game would be a 100% better !

Now what would you like?

Is the Pave Low glitch fixed where it sometimes didn't add to the killstreak?

i totally agree !
the main thing that needs fixing is
maps on game modes - we only get half of them NOT them all wtf is the point in that?!
Spawning - only a couple of spawn points so after playing a while you know exactly where they spawn
Match making - pure fail !
Guns - Most are over powered or too much recoil

I would like when I join a game, not to a join game that is just ended or is about to end. So annoying, wait until you get put in a game, only to join a game where the other team is winning by some un-god-ly amount or when someone is about to call in a nuke.

I agree and that come's under host migration/Match making.
i had the same thing !

all my team went into a SnD and it was 3-3 and all the team before left because they lost !

then the other team were laughing at us because we "lost" even though we just joined in.

i just hate the respawning at times the emeny or u spawn real close if not right in front of u

Make the Intervention stronger.

pave low glitch where it dont add to your kill streaks is still wrong i mean they really need to fix it cuz i really love the jolly green giant....also the striker shotgun is nasty now

i agree totally with the dude at the top

the thing i want is to change the invite system to the cod4 one, and to be able to lock a private match cause it's really annoying when your trying to do a glitch or something and somebody join's your session into the private match and ends up killing you.