The recoil issue is heavily exacerbated by the way the weapon is mounted. The barrel and thus recoil force are ~12" above the center of mass, causing the recoi

The recoil issue is heavily exacerbated by the way the weapon is mounted. The barrel and thus recoil force are ~12" above the center of mass, causing the recoil to try to spin the robot rather than just pushing it backwards. If they mount the rifle upside down or sideways so the recoil is closer to center mass, I think the recoil would have a far lower effect. They could probably change that over fairly quickly. I also suspect that they'll end up chambered in pistol or intermediate calibers. The ammo is lighter and more compact, as are the firing mechanisms, and I don't know if these things can orient themselves accurately enough to hit something at 100 yards. Something like this that can move fast with an integrated P90-like weapon would be extremely powerful and terrifying.