For now it's having all five (flamer, plasma gun - one plasma gun per squad instead of current five, heavy bolter, missile launcher and lascannon) upgrades for Tactical Marines. It's in fact, already done, just not published yet.
Besides it - heaby bolter and missile launcher for SM Scouts as well.

Implemented the features from my previous post. Enjoy!
Next feature to add is - Missile Launcher Devastators (you guessed - a squad with 4 MLs at once).

Here's to hoping the project isn't dead yet

@Thom Let's call it "in deep coma" .... have lots of other things to do.