Warhammer 40,000: Space Marine
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Warhammer 40,000: Space Marine

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There are a maximum of 59 Warhammer 40,000: Space Marine achievements (50 without DLC) worth 3,141 (1,235)

Achievement Details

Secret Achievement Achievement in Warhammer 40,000: Space Marine

Secret Achievement13 (10)

Offline Required - This achievement requires play in offline game modesSingle Player - This achievement can be obtained in single player game modesMain Storyline - This achievement is gained automatically by progressing through the main game mode
Continue playing to unlock this secret achievement. (Secret)

0.0Show secret details | Earn this in the Warhammer 40000 Space Marine Walkthrough

Achievement Guide for But I Am Finished With You

AuthorSolution
Hirsute Dave
71,226
Hirsute Dave
Achievement won on 21 Sep 11
TA Score for this game: 894
Posted on 21 September 11 at 07:04
 This solution has 5 positive votes and 0 negative votes. Please log in to vote.
Recommended Weapon: Vengeance Launcher

I'm only doing this on normal so it may take a bit more effort on Hard - I'll come back and edit if it's significantly different.

Grimskull will greet you shortly after entering the Titan Manufactorum - so after restoring power to the sentry guns as soon as you see a weapon cache pick up a Vengeance Launcher.

He will flat out murder you in close combat so try to keep your distance and dodge all his charge attacks. Drop five charges on him and detonate them all in a chain - seems to do a fair bit of damage.

About halfway through the combat (the autosave will give it away) he'll open up the walls for Boyz to pour in. Ignore them and keep planting charges on Grimskull - the detonation will probably kill most of them anyway.

Another autosave and he'll then climb out of the pit and bomb squigs will start to appear - blowing them up near Grimskull can't hurt ;) - but keep attaching charges to the big guy. Another 10 should finish him off. If you run out of ammo, there are boxes in the corners of the room.
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