Just a copy paste from Call of Duty forum:

Call of Duty: Modern Warfare 3 Update History (All Platforms included)

TU1: Enabled Theater, Vault, Private Match options, Elite and Facebook functionality for Launch Day.
TU2: Fix for YouTube video upload on SD TVs. Matchmaking Improvements.
TU3: Theater Improvements (Fix to FF and RW in Theater), LAG improvements, Improvements to Hot Fix system.
TU4: Change to address hitching and lag in gameplay.
TU5: Further improvements for hitching and addressing lag in gameplay.
TU6: Additional improvements to address lag. Fix for Melee Jump. Clan Tag Validation (remove buttons from clan tags). Improve Host Migration logic. Prevent stat loss when player loses connection from server (internet pull / drop).
TU7: Improvement to address "Host Disadvantage" / "Lag Compensation" that caused hosts with good connections to be hindered. Plus ability to hot fix additional tweaks based on user feedback to this change.
TU8: Networking enhancements, Theater improvements and fixes, Further improvements to "Host Disadvantage" / "Lag Comp", Increased speed of YouTube uploads from 32k to 256k, Nerf to all Akimbo weapons (reduced fire rate), Shotgun re-balance (Slight nerf to Striker, slight buff to all other shotguns), Fix that prevents some users from not receiving their prestige token after prestiging, fix stat bug that retains "games played" stat across prestiges.
(Note: TU8 is currently available on Xbox Live and is in certification on Playstation 3. It will be out shortly on all platforms soon.)

Hot Fix Updates (Released):

No Recoil glitch
Infinite Laptop killstreak glitch (Stealth Bomber Glitch)
Map Exploits (Getting into trucks, under maps) Fix
Prevent Slow-mo and Super Fast lobbies
Fire rate normalization for Assault Rifles with undermounts
FMG9 Re-balancing (Nerf)
Akimbo FMG9 Re-balancing (Nerf)
Type95 Re-balancing (Nerf) - Reduce hipspread.
Fix for ACR with Red Dot / Shotgun
Fix Type 95 bug related to dropping it.
Fix map exploits on Dome
PS3 Hitmarker Sound
Adjust direct impact damage a Semtex does to a Juggernaut (No longer 1 hit kill)
Improvements to "weighted matchmaking" to improve games for regions with low populations.
Improvements to the Spawn Logic and Spawn System.
Fix for the any Proficiency on any gun exploit.

Re-balancing and Updates currently in Development and/or Discussion:

Further improvements to the Spawn system
Improvement to PS3 Mic Quality.
HD Video Uploads on PS3
Default :30 Round Start timer for System Link only, while looking into adjustable timer for System Link games for Competitive Play.
Options to allow System Link players to 'unlock all' for competitive play in System Link only.

----------------------------------------------------------------------------------------------------------------------------------------------------------------

So what you guys think?
I like the Akimo FMG9 nerf update.

wait till i get home and test the akimbo. see still OP or not

I don't think the PC platform version of shitkimbo has been nerfed.

Akimbo same only. No difference :s I heard they nerf the firing rate.

cepat fix akimbo la..i hate akimbo ppl le, make me use rpg belasah them

Hello,

-itzChan #MW3 here (:

Yeah I know how you feel, shitkimbo really damn annoying especially FMG9.
The fix will come as soon as possible because IW promised to fix it on all platform.


Oh, hi there itzChan.

Latest updates from last PC patch:
- MG36 grip no longer has reduced fire rate
- SPAS-12 now has 14 min damage (tested and proven, 7 hitmarkes with 1 pellet each + 2 stuns will kill)
- 5 additional prestiges (15 total)
- Overkill pro now lets second primary weapon have attachments proficiency and 2 attachments