in mission 12 doc can't pick up the poison on the small house at the ally. he just stands next to it. i tried replaying the mission but nothing is changing. kind of broke the game because the poison is immanent for the mission. please help

Same here! Just noticed this last night.

I'm playing the Linux version.

This was already mentioned on Steam forums, he didn't say which version he has, but I didn't have this problem with Win version. Actually, not a single problem.
I guess this problem is on Linux only, can you confirm that, Hendrixxy? If so, you can't do much about it.

This gas is really not that important in this mission, it's on a location where you should have killed most of them already.
In fact, I only used 1 gas right in front of this house, you start with 2, you get 3 on a balcony of this house, I was left with 4 at the end.

I managed to complete the mission without the gas, but how I played it, there was a couple of spots where I could have used it. Still, it's not that important.

Oh nothing