Yep. Any RAF trade that can be considered for tactical role can attend No 1 PTS for their Basic Military Parachute course, although in my time, we undertook Pre-Para, not P Coy as that was specific to the Parachute Regiment. If RAF and being attached to 3 BDE RM CDO, you can also book yourself in for 13 weeks of All Arms Commando Course training. It is not an option open to all (although things may have changed). In my day it was members of RAF Tactical Signals mainly, with some Air Traffic Officers who were employed as Forward Air Observers. There may have been a few Tactical Supply WIng or Logistics who also attended. RAF Regiment Gunners did not normally have access to AACC as they served with their Squadron, not at Brigade level. Hope this helps?