Hi,

I'm currently playing the first Survival mission on Medium difficulty and have lasted to the point where my reward is over $120,000. I have a chokepoint that is well defended and bottlenecks the aliens coming from the rest of the map. The only aliens that can get past are the Burrowing Hives, which are quickly dispatched by my defenders.

The enemies don't seem to be making more and more progress against my defences (with turrets and snipers), so is there a point at which the game will just give up and say "you win", or will I have to give up myself and let them destroy me on purpose to end the mission?

Also, as an additional remark: the mutation icons on the sidebar appear to max out at 17 mutations displayed - I have had a few more mutations show up as notifications, but no icons are added to the sidebar display.

Edit: Here's a screenshot of where I'm at:
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=1477683701