AinvPknlMstpSlayWrflDnon_medic is kneeling animation which had generic hand movements and was used as self healing animation in A2 and A3. With rev. 103923 this animation was replaced by new while old one was completely removed from the game. Old animation was very useful in custom missions to give impression of character doing some activity while new animation doesn't fit for this at all. I suggest to bring back old AinvPknlMstpSlayWrflDnon_medic but with different name so scripters can use this useful animation and make it possible to transfer scripts that use it from A2 to A3.