dofollow is a command that forces the unit to do something... like dofire, dotarget etc.... only works if the unit deems it possible..
commandfollow is when a group leader orders the unit to follow something... like in the training for CWC, you are ordered to target the target... commandtarget, commandfire...
ofp is very sketchy when it lets you do it, and if it will work... its a kind of trial and error situation i'm afraid :-\