How are the achievements?

[Jedo]

I saw on another thread that the game took about 4 hours to 100%. Is this true?

[Jedo]

Thanks for the feedback. I'm trying to get some friends to play this as we speak.

[Varenzer_H8JK]

it was done by my friend for 6.5h

[X-C-V]

Done campaign and all achievements 100% in 3.2 hours

[londiste]

under 2 hours, if you do it on easy.