Patton89 said:power armour has motors to assist movement. And a its fusion powered.
So, yes, you did miss something.
I had something of that in mind, but didn't remember really...
But as someone else wrote above, there should be nooo way to run in it... Either fast and weak, or slow and invulnerable.
By the way... Does movement in Fallout 1/2 combat actually do any difference? I mean in the way if I decide to run instead of shooting, it should be more difficult for the enemy to hit me, and vice versa if they move and I want to shoot them.
It's something I never thought about when playing the games (not even Fallout Tactics) but now when I think about it... Is it so? Because that would add some more depth into the combat system. Otherwise its still the one and only tactic that always works... Standing behind a wall/pillar and walking a hex forward and shoot the enemy and then repeat until the stupid crapper dies...