Wtf is going on? Medkit isn't useful for Grens? Rofl
Not in its current form and when it also available on pioneers.
To put in perspective "field first aid" ability where used in 4 games out of 40 and 11 times total (WC19) and I would have to guess that 3 of those games was when the infatry doctrine was chosen and it was actually free.
So on it is not really useful.