Commando's Valor: (Commando's helm + both commando shoulders, Tactical/Hardcase): +30% maximum shields, movement speed +25%, Assault Rifle, DMR, and Needle rifle dmg +15%. +30% maximum carry amount of ammunition for all weaponry.
Stealth personnel's insight: (Recon Prototype [R], Sniper shoulder (single), Tactical/Soft case: Innate cloaking lasting 15 seconds with recharge when not activated, movement speed +15%, carry 20% more Sniper and pistol ammo and well as obtaining 10% more ammo from found drops. -15% maximum shields.
CQK Specialist: (CQC or CQB helm, Collar/Breacher chest, Assault/Breacher wrist, Tactical/ Trauma Kit): Melee dmg now breaks through shields, deals +15% dmg and can now assassinate enemies from the front (65% chance). Movement speed +30%. *CQC helm only.
Or Increased effective range of Shotgun in addition to +15% dmg, +10% movement speed and a chance to assassinate enemies from the front (30% chance). *CQB helm only.
Both helm variants offer an innate +85% maximum health, +35% shield dmg resistance and an invulnerability to dmg while assassinating and 2 seconds after completion. Oh! And CQK stands for Close Quarters Kombat :D
Halo can make one badass PvE MMO.