base on RA mod, I made some tweak for self-entertainment:
add 1 more playable ASTUTE; enhance the Satellite system; build Submarine-to-Air missile system, so far, so fun, let's picturefy:
Sub-to-Air missile series:
USA virsion: SM-4 for Seawolf Virginia Ohio
RUS virsion: SX-6 for Delta-IV Oscar Akula II-Imp
UK virsion: SASX for Astute
ASTUTE with SASX
Virginia with SM-4
DEVLT-IV with SX-6