Imo make the PK an anti infantry top tier weapon to cover our sever lack of power weapons but kill its anti vehicle (its a suicide mission anyway).

Then give us the rokkit ammo to make rokkits versatile and varied at AV rolls. Higher dmg/explosion but even crazier flight vectors, fast reload fast fire rokkits with no splash for ant inf work, large aoe no insta kill napalm rokkits, faster flying rokkits with smoothed out trajectories with current dmg etc.