When Death Match mode startss, pause the game and press LT, Y, X(2), Y, RT. Your ship's rate of fire and regeneration rate will increase until your ship is destroyed. Enabling this code unlock the "Kobayashi Maru" achievement.
Pick a solo Team Deathmatch game, then select any map you wish and create a lone bot. When selecting your class, select 'Flag Ship' and then repetaedly kill the bot (and the escape pod if you can). After about 22 kills you should have around 250,000, unlocking the NCC-1701 achievement.
ACHIEVEMENT - HOW TO UNLOCK Academy Graduate (5 points) - Earn 1 kill with each ship class. Red Shirt (5 points) - Be the first to die in a Versus multiplayer match. Imperial Instincts (10 points) - Earn 25 cumulative point captures in Conquest. Bridge Commander (15 points) - Earn 250 cumulative kills in Team Deathmatch. Mirror, Mirror (10 points) - Capture a point with the aid of your own wingman. Born Leader (15 points) - Capture all 4 points in a single Assault match. NCC-1701 (20 points) - Earn 250,000 points as the Flagship class in one Team Deathmatch game. No Mercy (20 points) - Earn 50 cumulative Escape Pod kills. Starfleet Medal of Honor (30 points) - No deaths or ejections, plus at least 15 kills, in one match. Vulcan Wisdom (25 points) - Don't die or shoot, yet capture 3 points including the enemy base in a Conquest match. Nero's Rage (25 points) - Destroy 3 enemies while using a single invulnerability powerup. Kobayashi Maru (20 points) - Activate the Kobayashi Maru cheat.
"D-A-C - Deluxe Edition" achievements ACHIEVEMENT - HOW TO UNLOCK Dreadnought (15 points) - Destroy all 5 ship classes plus 1 escape pod using the Missile Cruiser in Versus. Captain on the Bridge (20 points) - Earn the Captain rank in Survival mode.