This is as good as you're going to get:
I really like this map, and most of the features you've added, but could you please add an option to play with or without the boss and/or the crawlers? Panzar Soldier in pretty cool, but sometimes I could do without him and I don't know a single soul that loves the nova crawlers. Anyways great work
Simply put it this form of "modding" doesn't work due to this with CD/DVD exe.