Updates in regards to speedrunning like you asked won't be possible, I'm a afraid. I have barely enough time to work on this update aside from my other projects and that update wasn't even planned to begin with :) So, sorry! But I didn't know there was an active speedurnning community. Gotta check that out later!
Too bad, I am sure some creative people could create a TAS if the source code would be publik, not saying it should be. Anyway, here is the speedrun.com link https://www.speedrun.com/friendly_fire
oh, the source IS public, The game is completely open source. So, if anyone wants to tinker around with it, that's perfectly fine! The code is a jumbled mess, but that's to be expected from a frankenstein project that was mostly cobbled together in a three day jam :) https://github.com/friendlyfiregame/friendlyfiregame/
Thanks for the speedrun link!