How to attack in the jump? (RAGE 2)

It's not pumping, it is the ability called overhand, look for the ark of the Scar Lands somewhere in the middle of the map, and so it will acquire this ability. But then the ability is already possible to pump, that would were more powerful. By the way a very good ability.

Farzik
If understood correctly,this is one of the skills of the same time ark works to retain Ctrl + click spacebar (can be pumped) primarily suggest to find all the ark (12-14 pieces) on the map,level up, and then play the main and dopemissii, a map of all ARKS can Google