Okay, question time. So far, I have been able to find this post by PeterP (which was very informative) http://forums.eagle.ru/showpost.php?p=1488942&postcount=26
However, currently in DCS World, all DCS level aircraft (P-51D, A-10C, Ka-50) have the ability to use the zoom in and out key commands with TrackIR zoom enabled. That is to say, you are able to reposition the default zoom level of your view in-game. The only aircraft that you aren't able to do this with is the Su-25T, and it isn't because of lack of 6DOF (even if you force the Su-25T pit into 6DOF, it still doesn't work).
My question is why DCS aircraft are able to do this, but the Su-25T and FC2 aircraft are not. And furthermore, I would like to know how to modify the Su-25T in order to have this functionality.