[Fyren]

Here's a plugin that can give out the upgrades. Caveats: only works for Linux, I'm not supporting it, and you have to set survivor_upgrades 1 yourself to make upgrades work at all.

It seems like only some of the upgrades work. If you add an upgrade and get a message in chat about it (one of the ones from the top of the ampasted stuff), it worked. If it says nothing, it doesn't work (or you forgot to turn survivor_upgrades 1).

I don't know what the deal with skills are. Probably just not completely implemented by Valve. I didn't get any affects other than not being able to move, either.