Possessed Marine and Weapon Choice

Why does the Possessed use a Powerfist? I don't mean for the weapon model, but the stats. In the tabletop game, the Possessed only have melee weapons, basically just chainswords. They are faster, thougher, stronger and have 1 more attack then a normal Marine which makes them AI units and not AT, what a Powerfist would make them. Wouldn't a fast chainaxe make more sense statswise?

We don‘t necessarily follow the tabletop game 100% all of the time. We‘re a game based on the license for the universe and lore and have essentially nothing to do with how the tabletop works. We might take inspiration from it, some of the rules are based on lore we follow, but the rules themselves does not affect our license.

Nothing says we won‘t provide variations of the same Heros though. It‘s just not possible right now in the system. As part of the previous questions on balancing and heroes, we might decide to change the basic weapon, sure, but that‘s no promise. Melee should simply work, and he should be meaningful as designed.