hp packs always drop in like the same area right? so therefor there really is not much randomness to it, and efforts can be made to increase or decrease your chances of getting the hp packs (by positioning yourself in near the area that the hp packs drop), so really, it is simply part of the game fair to both players, and losing out because of your opponent having gotten the hp packs and not you is simply a tip of the hat to your opponent, in my opinion.