What should be done about random engines

[Kotlol]

I'll be honest, I can't think of any downsides for just making it Choose Your Own Engine for all maps. Sometimes you really want to test a TEG setup, or mess with the nuclear engine, but you're kind of forced to wait for them to show up. Not particularly fun.

Some maps do not work with all engines.

But I think we should have 1/2 maps have "Chose your own engine" and the rest who's map mechanics are based on that engine. (Donut 3, Oshan, Nadir) should remain that way.
The rest can be random engines.