I go for Recon support just for the Grayhound.
I love collecting OKW tears.
The canister shot is the only thing that makes it worthwhile.
I won't deny you,
But you should try the reco run that give a huge advantage just before a massive push. You know where his ATguns are, blob is etc...
IR Pathfinder has a unique ability: to call Arty barrage in the fog of war. So you sneak behind his line and you don't even need to have vision to burst him. Of course you need to know where is your target but the previous reco run is here for that. Perfect counter to medic truck.