Spartan Firefight achievements

Upgrade any Weapon for the first time in the armory.

Earn a Killing Spree medal in a Red vs Blue game.

Earn a Triple Kill with one shot of the Spartan Laser in a Red vs Blue game.

Buy an Emblem in the shop for the first time.

Get an Invincible medal in any game mode (100 kills without dying).

Earn 3 stars on any mission.

Buy a Skin for any weapon in the shop.

Reach your first rank.

Complete all of the Daily Challenges in a given day.

Score 25,000 points in an Floods game.

Reach the rank of 5-Star General.

Advance a Commendation to a Gold state.