[OPTRE] Underground lab [OPTRE] Underground lab for ArmA 3 on the Steam Workshop. Subscribers294 Favorites66 Views1,130 Workshop ID3495619095 Open on Steam
![[OPTRE] Underground lab](https://images.steamusercontent.com/ugc/16928820393265381438/8FE9CA29781FD290A9861A6971AE5FB20C83ED30/)