Can you try the 'NewMotionTree' instead of the 'CompleteMotionTree'?
"..\\..\\..\\Common\\NewMotionTree.abp",
The CompleteMotionTree was used to the standard two factions, but Okw, US and the UK weapons use the new one.
Just tried it, and it didn't work.
ABP file looks like this:
--3DSMax Toolset Generated: abp_functions.ms--
model =
{
"..\\..\\..\\Common\\NewMotionTree.abp",
"..\\..\\..\\common\\base\\femalemotion\\femalemotion.abp",
-- Weapons in Use
"..\\..\\..\\british\\weapons\\boys_at_rifle\\boys_at_rifle",
"..\\..\\props\\demolitions\\demolitions",
-- Common Soviet Gear
"..\\..\\sovietcommongear.abp",
"ania",
}
Is it perhaps a pathway problem? I tried to find the specific pathway to NewMotionTree but had no success.