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Alien 3: The Gun achievements progress.
Make it through act 1 of stage 2.
Make it through act 2 of stage 2.
Make it through stage 1 without using a credit.
Make it through act 1 of stage 2 without using over one credits.
Make it through act 2 of stage 2 without using over one credits.
Make it through stage 3 without using over one credits.
Make it through stage 4 without using over one credits.
Make it through stage 5 without using over one credits.
Reach the rank of brigadier general.
Make it through stage 6 without using over one credits.
