Iv'e been hearing a lot of wierd things about mw2 weapons and game mechanics so a few weeks ago i decided to test All weapons, perks and attachments in All possible ways, in a private match with help of some friends in xbox 360 version. It took me alot of time but here goes:


MYTH: "Intervention is the most accurate sniper because its bolt action"
FACT: False. Every sniper hits where u aim, what makes snipers different is the sway when u aim and recoil when u fire. The intervention sways more than all other snipers and takes more time to setlle when holding breath, also the recoil is higher than WA2000 and M21.


MYTH: "Holografic Sight improves shotguns range and/or makes it more accurate"
FACT: False. Its exaclly the same w/o any sight even if u aim.


MYTH: "Holografic Sight reduces recoil"
FACT: True but only on M16A4, it makes it have less recoil than its rival the FAMAS but its still more than ACR.


MYTH: "Extended mags gives more overall ammo"
FACT: True but only in some cases, for example if u use an SCAR extended mags with scavenger pro, u get the extended mags bonus of 10 rounds (30 per mag) and keep the 120 in reserve, giving u a total of 150 rounds. if u dont use extended mags u wil have a 20 round mag + 120 in reserve, making a toltal of 140 rounds.
In other words, u only increase overall ammo if pair extended mags with scavenger pro, although the said bonus is small.


MYTH: "FMJ improves overall damage"
FACT: False. Although the game stats show u otherwise, the truth is game weapon stats are wrong in every single way, they give an "idea" of weapons performence but they are far away from actual game mechanics.
FMJ is just like cod4 Deep Impact perk, it only increases bullet penetration, however u actually kill an enemy faster through a wall or other obstacle (except sandbags) due to improved penetration.


MYTH: "ACOG scope increases weapons range and decreases accurecy"
FACT: False and true. ACOG only increases zoom rate/magnification, not overall range performance. On the other and it does increase weapons recoil with the exception of snipers.


MYTH: "Silencer caps rate of fire"
FACT: True, but only on some single-shot weapons like handguns, and the M1014.


MYTH: "Silencer reduces weapons recoil"
FACT: I know its hard to believe but its actually false. After many hours of testing (shooting a wall in the exact same range and position) there was no diference in recoil. Probablly the lack of muzzle flash and soft sound is what makes it look like it an improvment.


MYTH: "The barrett as the highest penetration because its a .50BMG"
FACT: False. There is only 2 types of bullet penetration, low and high. Weapons with low bullet penetration are the following:
MP5K, Vector; P90, Uzi, M9, USP and all shotguns.
All other weapons have high penetration and if equiped with FMJ they turn to VERY high penetration, low penetration weapons become only high penetration wich makes FMJ on these weapons a bit useless unless u blasting someone with a AA12 or RANGER from other side of the wall from a very close distance.


I know its long to read but i hope it helps.