Think we could try re-enabling Spectator before the next PUG night? I recall it crashing when engineer was active, but now that Engy is dead it might be worth bringing back. Having a buggy Spectate button gets annoying sometimes since people accidentally hit it. The script exists, it's simply commented out. I have enabled it on my own server and haven't encountered any issues, though with a full server that could change. I recall it working fine during early 1.40 testing before Engy came along.
Observer script is located at Legions\game\server\game\observer.cs.
Not entirely sure if all the follow functions work, such as following projectiles and what-not. Free-cam, player snap and flag snap work though.
edit: Nevermind. It crashes when you're observing a projectile that goes out of bounds. Oh well.