.50 GS

A .50-calibre hand cannon from Singuard Arms, unlocked at level 41. Its Apex attachment makes it fully automatic.

Camos for the .50 GS

14 camos in order: 8 Military, 3 Special, then Gold, Platinum and Harmonic Break.

Earned by levelling the .50 GS. Every weapon shares these eight; only the levels differ.

Unique to the .50 GS. Finish the challenge in either Multiplayer or DMZ.

FrostedUnconfirmed
Multiplayer Get 20 Headshot Kills against Players
DMZ Get 75 Headshot Kills against Enemies
Splatter OpsUnconfirmed
Multiplayer Get 7 Double Kills against Players
DMZ Get 20 Double Kills against Enemies
Red TigerUnconfirmed
Multiplayer Get 30 Point Blank Kills against Players
DMZ Get 75 Point Blank Kills against Enemies

Each one opens when the step before it is done.

Gold
Once all 11 camos above are done, get 15 kills in one Multiplayer match or 100 in one DMZ match.
Platinum
Once all 4 pistols have Gold, the pistol challenge is kills from behind.
Harmonic Break
Once all 33 weapons have Platinum, the pistol challenge is hipfire kills.
Divergence
Follows automatically after 33 Harmonic Break camos, and opens the mastery camos.