So the achievement -percentages seem off

[Sinophile]

My achievement says only 0.1% passed the breeding zone. However. 4% got the submachine gun. This doesn't make sense since you have to beat the game to get the submachine gun.

[Rockkange]

Got all. Kinda easy.

[Valhalla Awaits]

Many of the achievements are outright broken. Like I never got the rifle or shotgun one unlocked, despite having both. They were just very poorly coded.