Here is the full list of all 45 Rogue Warrior achievements.
Complete the game on Regulars difficulty.
Perform 5 Finishing moves. (Single Player)
Complete the game on Recruits difficulty.
Kill at least one enemy with every weapon in the game. (Single Player)
Kill a group of 4 enemies with a grenade. (Single Player)
Kill 5 enemies with a shotgun without reloading or changing weapons. (Single Player)
Kill 5 enemies with an assault rifle without reloading or changing weapons. (Single Player)
Complete a mission without dying. (Single Player)
Kill 50 unalerted enemies. (Single Player)
Complete the game on Elites difficulty.
Complete mission 8 on any difficulty.
Kill 20 enemies using explosive objects. (Single Player)
Blow up 20 fire extinguishers. (Single Player)
Complete mission 7 on any difficulty.
Kill 50 Spetznaz. (Single Player)
Kill 30 enemies using sniper rifles. (Single Player)
Complete mission 6 on any difficulty.
Destroy 10 vehicles. (Single Player)
Kill 20 enemies using blindfire. (Single Player)
Complete mission 5 on any difficulty.
Kill 20 enemies using grenades. (Single Player)
Kill 30 enemies using kill moves. (Single Player)
Complete mission 4 on any difficulty.
Complete an entire mission using only the pistol. (Single Player)
Kill 50 enemies with head shots. (Single Player)
Complete mission 3 on any difficulty.
Complete mission 2 on any difficulty.
Complete mission 1 on any difficulty.
Throw an enemy over a ledge. (Single Player)
Perform 3 Kill moves in a row. (Single Player)
Smash an enemy's face into a wall. (Single Player)
Play online once. (Multiplayer)
Place first in a Ranked Deathmatch game. (Multiplayer)
Kill 3 people in a row. (Multiplayer)
Play a Team Deathmatch to completion with at least 3 friends on your team. (Multiplayer)
Place first in 10 Ranked Deathmatch games. (Multiplayer)
Kill someone on your friends list. (Multiplayer)
Perform a kill move on a friend. (Multiplayer)
Play 50 games online. (Multiplayer)
An enemy dies from your grenade ... after you have been killed. (Multiplayer)
Place first in a Ranked Team Deathmatch. (Multiplayer)
Be on the winning team for 10 Team Deathmatch games. (Multiplayer)
Host a custom game to completion. (Multiplayer)
Finish each map in 1st place. (Multiplayer)
Kill 200 enemies. (Multiplayer)