Add some scripts to generate other units from the base TW units.
Make a bunch of improvements to squad and equipment load outs. Also improve some replacements for JTF2 variants.
Improve replacement script.
Consolidate both group and unit update scripts for JTF2 into one script. Remove AR script since we don't have assets for it yet.
Update group setups and tweak some names.
Update JTF2 textures to be a little better balanced.