Doom 3 BFG Edition

Cheat Codes:
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Submitted by: David K.

Achievements:
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Complete the following tasks to unlock the corresponding achievement. 
To view your achievements and stats in Steam, select "Community", then
"My profile", then "View all my games", then the game and view stats.

Achievement                 How to unlock
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All of Us         - Find the id logo secret room in DOOM 3.
Berserked!        - Use Berserk to kill a player in DOOM 3 Multiplayer.
Big Boy           - Defeat Cyberdemon boss in DOOM 3.
Boomtastic        - Blow up 50 barrels in the DOOM 3, RoE, or Lost Mission campaigns.
Clean Sheet       - Complete a DOOM 3 Multiplayer match without dying.
Cookie Stealer    - Defeat Guardian boss in DOOM 3.
Gimme Power!      - Defeat the Berserk Hunter in RoE.
Gimme Time!       - Defeat the Helltime Hunter in RoE.
Goody Finder      - Open all storage lockers in DOOM 3.
I Like to Watch   - Find all video logs in DOOM 3.
Killing time      - Score 25000 on Super Turbo Turkey Puncher 3 in DOOM 3 or RoE.
Lost Collector    - Collect every PDA in the Lost Mission campaign.
Lost Marine       - Complete the Lost Mission campaign on Marine.
Lost Nightmare    - Complete the Lost Mission campaign on Nightmare.
Lost Recruit      - Complete the Lost Mission campaign on Recruit.
Lost Veteran      - Complete the Lost Mission campaign on Veteran.
Neophyte          - Complete any level in Ultimate DOOM in singleplayer.
Ninja Killer      - Kill 5 enemy players while using Invisibility in DOOM 3 Multiplayer.
Play Catch        - Kill 20 enemies with projectiles launched from the Grabber in RoE.
RAGE              - Find the RAGE logo in the Lost Mission.
Ready for Action! - Get the BFG-9000 from Security Chief's office in DOOM 3.
Ripped!           - Use the chainsaw to kill 20 enemies in DOOM 3.
Shocking!         - Defeat the Invulnerability Hunter in RoE.
Soulfood          - Use the Soul Cube to defeat 20 enemies in DOOM 3.
Speed Run         - Complete the DOOM 3 single player campaign in 10 hours or less.
Sticky Situation  - Defeat the Vagary boss in DOOM 3.
That was Close!   - Kill an enemy with 1 health remaining in DOOM 3, RoE, or Lost Mission.
Too Slow, Fool!   - Kill 5 enemies at once while in Hell Time in RoE.
Turncoat          - Get 2 demons to fight each other in DOOM 3, RoE, or Lost Mission.
Unarmed Badass    - Kill 20 enemies with the fists/melee hands in DOOM 3.