perks

    Extreme Conditioning - Sprint Longer Distances (climb obstacles faster)
    Sleight of Hand - Faster reloading (faster weapon swapping)
    Scavenger - Pick up ammo (unknown)
    Blind Eye - Undetectable by air support and sentries (Launches lock on faster, extra damage to support and sentries)
    Recon - Explosive damage shows targets on minimap. (Bullet damage shows targets)
    Hardline - One less for killstreak (2 Assists count as one kill towards streak and 1 less death required for death streaks)
    Assassin - Immune to UAV, Portable radar, thermal and heartbeat (Immune to Counter UAV and EMP and no red cross hairs)
    Overkill - Carry two primary weapons (unknown)
    Quickdraw - Faster ADS (Faster recovery from equipment and nade usage)
    Blast Shield - Increased explosive resistance (Immune to stuns and flashes)
    Marksmen - ID targets from long range (longer breath holding)
    Sitrep - Detect enemy explosives (Hear footsteps louder)
    Dead Silence - Locked until lvl 55 (No fall damage)
    Stalker - Faster movement while ADS (Delay enemy claymores)
    Steady Aim - Improved hipfire accuracy (Faster ADS after sprinting)