The USAF IOC standard is Block 3i, which is the Marines' 2B on newer processors. Like the Marines, they plan to do CAS with two LGBs, no gun, no HDTV and no Rover. GLWT.
On the bright side their flight envelope limits are less onerous, although A2A against a Su-35 will still look like Roseann Barr playing Serena Williams.