Small emergency patch for crash on tutorial. — Undercrewed Steam update #155800

Greetings Captains I just put out a small emergency fix because of a crash for new people playing the first level online. The bug was when overwriting the AI pattern for levels that have non-default behaviour. Sorry for those people that spotted the crash, it's fixed now. There were a small number of other features I had been working on that I have deployed with this. The two main ones: Enemies off the screen are more likely to pathfind back onto the screen faster Enemy bullets can change speed in the air, this is more for aesthetics than balancing enemies. Lots of love David Strachan