Unlock Foundation Map
Complete the single player game on any difficulty.

CTF - Throw your flag
If you're about to get killed playing CTF, throw your flag away. Just jump up and try to throw it to another team mate or at least get it away from the other team.

Ivory Tower
Get the Carbine weapon on Ivory Tower behind the crates on the first floor, below the upper level entry, near the shotgun area with two vents. 1

Adjust Your Look Sensitivity
Try adjusting your Look Sensitivity (in Settings/Controls) higher than default (try 8) so that you can turn fast enough to catch people sneaking up behind you.

Radar - Undetectable
Crouching makes you undetectable on radar

Ivory Tower - Waterfall pit
Always chuck a grenade into the waterfall pit in Ivory Tower. Most of the time someone is in there either hiding or collecting the rocket launcher.

Change Your Clothes
You should change you suit color according to the map, darker colors are less likely to stand out than yellow or pink, especially from a distance.

Easy Ghost Kill
Look at the back of the ghost, behind the left wing, there's a small green tank, shoot it with a shot gun once, or 3 times with a pistol and kaboom!

Multiplayer Medals

Killing Spree
Award: Kill 5 opponents in a row without dying
Games Available: All gametypes
Icon: a steel 4 sided star
Difficulty: 6

Running Riot
Award: Kill 10 opponents in a row without dying
Games Available: All gametypes
Icon: a bronze 5 sided star
Difficulty: 7

Rampage
Award: Kill 15 opponents in a row without dying
Games Available: All gametypes
Icon: silver 6 sided star
Difficulty: 8

Berserker
Award: Kill 20 opponents in a row without dying
Games Available: All gametypes
Icon: a gold 8 sided star
Difficulty: 9

Double Kill
Award: Kill 2 opponents within 4 seconds of each other
Games Available: All gametypes
Icon: brass medal with 2 stars
Difficulty: 5

Triple Kill
Award: Kill 3 opponents within 4 seconds of each other
Games Available: All gametypes
Icon: steel medal with 3 stars
Difficulty: 6

Killtacular
Award: Kill 4 opponents within 4 seconds of each other
Games Available: All gametypes
Icon: bronze medal with 4 stars
Difficulty: 7

Kill Frenzy
Award: Kill 5 opponents within 4 seconds of each other
Games Available: All gametypes
Icon: silver medal with 5 stars
Difficulty: 8

Killtrocity
Award: Kill 6 opponents within 4 seconds of each other
Games Available: All gametypes
Icon: gold medal with 6 stars
Difficulty: 9

Sniper Kill
Award: Kill an opponent with the sniper rifle or beam rifle
Games Available: Games with sniping weapons
Icon: 6 pointed star with crosshairs
Difficulty: 1
Message: You sniped (player)

Roadkill
Award: Hit and kill an opponent with a vehicle
Games Available: Games with vehicles
Icon: 5 pointed star with a wheel
Difficulty: 1
Message: You splattered (player)

Bonecracker
Award: Hit and kill an opponent with a melee attack
Games Available: All games
Icon: Inverted star with a fist
Difficulty: 3
Message: You beat down (player)

Assassin
Award: Melee an opponent from behind
Games Available: All games
Icon: Ninja on a throwing star
Difficulty: 2
Message: You assassinated (player)

Stick It
Award: Kill an opponent by sticking him with a plasma grenade
Games Available: Games with plasma grenades
Icon: Active grenade on a 16 pointed star
Difficulty: 3
Message: You stuck (player)

Carjacking
Award: Steal an occupied vehicle from an opponent
Games Available: All games with vehicles
Icon: Cross with a U-Turn
Difficulty: 2
Message: You boarded an enemy vehicle

Flag Carrier Kill
Award: Kill an opponent carrying a flag
Games Available: CTF Games
Icon: Hexagon with targeted flag
Difficulty: 3

Bomb Carrier Kill
Award: Kill an opponent carrying the bomb
Games Available: Assault games
Icon: Hexagon with bomb
Difficulty: 3

Flag Taken
Award: Take an opponent's flag from their base
Games Available: CTF games
Icon: Yellow triangle with flag
Difficulty: 4
Note: Only seen in post game

Flag Returned
Award: Return your flag to your base
Games Available: CTF games with touch return enabled
Icon: Green circular medal with flag
Difficulty: 1
Note: Only seen in postgame

Flag Scored
Award: Bring an opponent's flag to your base
Games Available: CTF Games
Icon: Red inverted triangle with flag
Difficulty: 6

Bomb Planted
Award: Plant a bomb in opponent's base
Games Available: Assault games
Icon: Red inverted triangle with bomb
Difficulty: 6