Yes, in Modern Warfare 2 you can get it as a secondary weapon
yes with bling pro you can
This is a new perk that allows you to have more then one attachment to your gun such as, thermal sight and silencer, or once you get Bling Pro, i think u can have 3 things such as heartbeat sensor, silencer, and acog scope on at once.
bling pro allows for your secondary weapon to also have 2 attachments
there is no camo for your secondary weapon, only for primary weapons, you get different camos for different amounts of headshots for each weapon. fall camo is the last one and it takes 250 headshots.
The nuclear bomb was not used in trench warfare.
none of them
Not all guns are able to be "duel wielded" on MW2. Certain guns have an attachment called "Akimbo" which allows you to use two of the same weapon at once.
Depends what gun right... Pistols have red dots, holographic, grips, silencers, akimbo, FMJ and maybe some others...
The tactical knife is a weapon attachment. To get the tactical knife for a pistol such as the M9 pistol, you only need to get a certin amount of kills 75 for the USP and M9 pistol and 100 for the 44. Magnum, it is the weapon attachment after akimbo. Hope this helps.
One of the best secondary weapons in CoDMW2 is the 1887 shotgun. I recommend attaching akimbo to this for multiple damage. You must be quite a high level to unlock this weapon. Also it is good if you have FMJ and akinbo if you have bling pro unlocked!
you have the get the weapon to maximum proficiency.