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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?

its part of the game....


but they need to fix:

spawn loactions
-BIG maps=same spawn beside enemies??

HACKS
-self explanatory

host migration
-may work 1 in every 20 games

Ground War
-PICK THE BEST HOST FOR GODS SAKE....NOT SOME AMISH FRUIT WITH WALMART INTERNET!!!