The following is a catalogue of the main multiplayer unlockables:
Attachments
Grenade Launcher (Assault Rifles only)
Grip (Increases accuracy - Light Machine Guns and Shotguns only)
Rapid Fire (SMG only)
Red Dot Sight
Silencer (Shots do not show up on enemy minimap)
ACOG Scope
FMJ (Increases damage)
Shotgun
Akimbo (Hold two weapons simultaneously - SMG and Machine Pistols only)
Holographic Sight
Heartbeat Sensor
Thermal (A scope which highlights enemies in white)
Tactical Knife (Pistols only)
Extended Mags
Equipment
Frag – Cookable fragmentation grenades.
Semtex – Timed sticky explosives.
Throwing Knife (lvl. 7) – Throw it and pick it back up.
Tactical Insertion (lvl. 11) – Choose where to respawn.
Blast Shield (lvl. 19) – Increased explosive resistance.
Claymore (lvl. 31) – Anti-personnel mines.
C4 (lvl. 43) – Remote-detonating explosives.
Perk 1
Marathon – Infinite sprint. (Pro: Mantle faster.)
Sleight of Hand – Faster reloading. (Pro: Faster aiming.)
Scavanger (lvl 13) – Resupply from dead bodies. (Pro: Extra mags.)
Bling (lvl 21) – Two primary weapon attachments. (Pro: Two secondary attachments.)
One Man Army (lvl 45) – Swap classes while alive. (Pro: Swap classes faster.)
Perk 2
Stopping Power – Increased bullet damage. (Pro: Extra damage vs. enemy vehicles.)
Lightweight – Move faster. (Pro: Faster knife speed.)
Hardline (lvl. 9) – Perks require one less kill. (Pro: Deathstreaks require one less death.)
Cold-Blooded (lvl. 25) – Undecetable by UAV, air support, sentries, and thermal. (Pro: No red name or crosshair when targeted.)
Danger Close (lvl. 33) - Increases explosive weapons damage. (Pro: Extra air support damage.)
Perk 3
Commando – Increased melee distance. (Pro: No falling damage.)
Steady Aim – Increased hip fire accuracy. (Pro: Hold your breath longer.)
Scrambler (lvl. 17) – Jam enemy radar near you. (Pro: Delays the explosion of enemy claymores.)
Ninja (lvl. 29) – Invisible to heartbeat sensors. (Pro: Move Silently.)
SitRep (lvl. 37) - Detects enemy explosives and tactical insertions. (Pro: Makes enemy footsteps louder.)
Last Stand (lvl. 41) – We haven’t actually unlocked this yet, but we assume it is similar to the Last Stand from CoD 4, which allows a player, upon his death, to take a few shots with his secondary weapon.
Kill Streaks
3 kills - UAV - Shows enemies on the minimap.
4 kills - Care Package - Airdrop a random killstreak or ammo.
4 kills - Counter UAV - Temporarily disables enemy radar.
4 kills - Sentry Gun - Airdrop a placeable sentry gun.
5 kills - Predator Missile - Remote control missile.
6 kills - Precision Air Strike - Call in a directional airstrike.
7 kills - Harrier Strike - Call in a Harrier Strike.
7 kills - Attack Helicopter - Call in a support helicopter.
8 kills - Emergency Airdrop – Calls in four care packages.
9 kills - Pave Low - Heavy armored assault helicopter.
9 kills - Stealth Bomber – An undetectable bombing run.
11 kills – Chopper Gunner - Be the gunner of an attack helicopter.
11 kills - AC-130 - Be the gunner of an AC-130.
15 kills - EMP – Temporarily disable enemy electronics.
25 kills - Tactical Nuke - Deploy a tactical nuke (ends the game).
Death Streaks
Copycat – Steal your killer’s class in killcam.
Painkiller (lvl 6) – Big health boost while you spawn.
Martyrdom (lvl27) – Drop a live grenade just after dying.
Final Stand (lvl 39) – Like the Last Stand perk from CoD 4, except that you can use your primary and recover after enough time.
Nov 11, 2009

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Richard Chiodo - July 16, 2012 10:22 a.m.