The mod support that Reelism X3 introduced was awesome, and it enabled some pretty awesome stuff. I love mods-of-mods, and wanted to make this easier, better and more "solid" for Reelism 2. I was planning on saving this for a future 1.0 release, reading up on how to do file I/O in ZScript, etc. etc... but then Shadsy went and did it all without any prompting like a couple of days before we finished this version. This happens more often than you'd think, but not normally with such a huge feature.
So, yeah! Mod support!

You'll be able to define new slots and bosses, and whether or not those slots should appear during Round 1 or during the Tank reel (or other future morph reels). All slots are handled as ZScript actors, giving you plenty of tools to do all sorts of horrible and wonderful things. And of course, custom maps are fully supported as well.
We're looking forward to seeing what fresh hells people cook up!