CAS mission issues - Red East FARP.
Hind slot 2 - No ATGM's (can be loaded by flying to Slot 1)
MI-8's - No door gunners
Overall an excellent mission! Really enjoyed it.
Would also like to see a Yak-52 as Forward Air Controller.
I have the EXACT same throttle and same mapping (to that toggle) and it works fine. The answer lies in your screenshot - there's a gear lever lock! I have it bound to the next toggle along and hit them both together.