This is a small campaign-like mission where you have to survive three [spoiler]dumb[/spoiler] enemy waves originally made by me back in 2011, the latest version (1.3) was made in 2018. For the best experience you should play it with a real player, and both of you need to be Allies faction.
I will admit it's not the most impressive mission ever made but for the time it was quite advanced for me since there's quite a bit of scripting involved.
P.S. Also check out the skirmish version of this map: https://steamcommunity.com/sharedfiles/filedetails/?id=3435375395
