Signal 50

A semi-auto .50-calibre sniper, unlocked at level 35. It levels to 74, second only to the KG-7 Vulcan.

Signal 50 blueprints 2

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

Earned by levelling the Signal 50 to 74. Every weapon shares these eight; only the levels differ.

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

AnacondaOpens at level 28
Multiplayer Get 2 Player Kills within 5 Seconds 10 times
DMZ Get 2 Kills within 5 Seconds 25 times
RipplewaveOpens at level 52
Multiplayer Get 20 Quickscope Kills against Players
DMZ Get 30 Quickscope Kills against Enemies
SunburnOpens at level 74
Multiplayer Get 40 Longshot Kills against Players
DMZ Get 100 One Shot Kills

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 3 sniper rifles have Gold, the sniper rifle challenge is kills while prone.
Harmonic Break
Once all 33 weapons have Platinum, the sniper rifle challenge is one-shot kills.
Divergence
Follows automatically after 33 Harmonic Break camos, and opens the mastery camos.