Please be aware that the list of Xbox 360 Achievements is complete and contains story related light spoilers

Achievements:

[15 points] Dead Eye - Headshot 10 enemies with the Sniper Rifle.
[15 points] Kiss the Cook - Roast 10 enemies with the Napalm Cannon.
[15 points] Snake Fist! - Kill 10 enemies with Melee.
[15 points] Stick Around - Pin 10 enemies to the wall with the Hammerhead.
[15 points] Blinding Truth - Slice up 10 enemies with the Laser.
[15 points] Raining Men - Kill 4 enemies with one Grenade.
[15 points] Deadly Ballet - Kill 4 enemies with one Slow-mo use.
[15 points] Home Wrecker - Use 50 pieces of interactable cover.
[15 points] Bank Shot - Kill 10 enemies using combat opportunities.
[15 points] Complete: Sanctuary - Complete Mission on any difficulty: Sanctuary
[15 points] Complete: Awakening - Complete Mission on any difficulty: Awakening
[15 points] Complete: Discovery - Complete Mission on any difficulty: Discovery
[15 points] Complete: Withdrawal - Complete Mission on any difficulty: Withdrawal
[15 points] Complete: Replica - Complete Mission on any difficulty: Replica
[15 points] Complete: Ruin - Complete Mission on any difficulty: Ruin
[15 points] Complete: Top - Complete Mission on any difficulty: Top
[15 points] Complete: Elementary - Complete Mission on any difficulty: Elementary
[15 points] Complete: Nurse's Office - Complete Mission on any difficulty: Nurse's Office
[15 points] Complete: Snake Fist - Complete Mission on any difficulty: Snake Fist
[15 points] Complete: Keegan - Complete Mission on any difficulty: Keegan
[15 points] Complete: Epicenter - Complete Mission on any difficulty: Epicenter
[15 points] Complete: Approach - Complete Mission on any difficulty: Approach
[15 points] Complete: Climax - Complete Mission on any difficulty: Climax
[30 points] Veteran - Complete all Missions on the hardest difficulty.
[30 points] All Juiced Up - Collect all Reflex Injectors in the game.
[15 points] Paparazzi - Collect 25% of the journal intelligence found throughout the game.
[20 points] Stalker - Collect 75% of the journal intelligence found throughout the game.
[15 points] Historian - Collect 50% of the journal intelligence found throughout the game.
[30 points] Oracle - Collect 100% of the journal intelligence found throughout the game.
[10 points] Enlisted - Promoted to rank: Private
[30 points] Officer and Gentleman - Promoted to rank: Second Lieutenant
[60 points] Four Star General - Promoted to rank: Four Star General
[100 points] Five Star General - All multiplayer achievements unlocked.
[10 points] Bloodbath - Get 20 kills during a ranked match.
[35 points] Finishing First - Be the highest scoring player for 3 consecutive ranked matches in any game mode.
[15 points] Monogamous Fragger - Kill the same player 5 times during any ranked match.
[30 points] Demolitions Expert - Set the C4 charge 3 times in a ranked FailSafe match.
[15 points] Dastardly Disarmer - Disarm a C4 charge 3 times in a ranked FailSafe match.
[15 points] The Mad Capper - Capture a PHLAG 10 times during a ranked match.
[30 points] MVP - In a ranked Blitz match that your team wins, be the only player on your team to capture a PHLAG.
[15 points] Gotta Cap 'Em All - Capture a control point 10 times during a ranked Control match.
[20 points] Control Freak - Defend a control point 10 times during a ranked Control match.
[15 points] Untouchable - Survive an entire ranked deathmatch match.
[20 points] Flash Dance - Kill 3 players while blinded from a shock grenade during any ranked match.
[25 points] Time well spent - Play 8 hours worth of ranked multiplayer.
[20 points] Suicidal Tendencies - Kill yourself 5 times.
[15 points] I'll Take Those Odds - Have more kills than deaths at the end of any ranked match.
[20 points] City Planner - Destroy 100 combat ops while piloting a Powered Armor unit during ranked play.
[15 points] Bad Robot - Destroy 2 enemy Powered Armor units in the same ranked round with a carried weapon.