I've found that in the SP with 1.3 Beta 3, haulers are retarted. Thats about the best word I can come up with. It LOOKS like the hauler is trying to get to close to whatever it's picking up (in this case a power crystal) and bumps into the objects collision box (or whatever it's called) and can't actually pick it up. Eventually the thing figures it out but only after a considerable amount of poking and prodding.
I'd like this to get resolved, as on certain maps, I have to bzwinner my way out of. It is, for lack of a better word, redicufreakinlous
That has been a reoccurring headache for the beta team. We get it kind of fixed (or fixed) in one beta build, it will be good for a little bit (a couple of builds), then all of a sudden (after we've stopped paying attention to it), it's broke again.