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