Heartbeat Sensor is not a Gun, it's a Attachment for all Assult Rifles. It is unlocked by killing 15 people with the silencer.
the wa2000 thermal scope and heartbeat sensor with a raffica red dot sight fmj
get like 30 60 kills with the gun you want the heartbeat with
no
Get All Modern Warfare 2 Cheats Cheat Codes, Walkthroughs & More
'''The following are the opinions of other players....''' ---- Tar-21 with bling pro...have extended mags and holographic sight...have stopping power pro and steady aim pro...and have your side arm a javelin ---- I say use the Ump45 with a silencer on. Especially if you are good with hip firing in the game ----
An attachment on the side of your gun, it acts as a personal radar that shows blips where enemies are.
Rank up.
No, but you can Choose your Camo, and attachments
Its an assault gun
just get to the max level
the g18
my is the MP7 and the G36C