Of course they can be combined.
Think of it this way .... he's a shock trooper, sent in to demoralise and perhaps kill the opponent before they can react. He then retreats behind his comrades and then goes again for that guy in the back.
He doesn't care about being careful, he just charges headlong into the fray.
Now during his career (if he survives that long) he figures out that he can leap over obstacles and become even more dangerous. Leaping over that low wall they're shooting from.
He still doesn't care about being careful, he just charges straight at that wall. The only difference is that he launches himself over it at the last minute.
The only "weird" thing that I can see is that the jump takes place at the start or during the charge instead of the end, but that's it.
Of course if he is taking all the charging feats (Battle Charger?, Powerful Charge, Greater Powerful Charge ...) you will see what pain is for most monsters.
Without doing calculated munchkin-ing, a warrior can generaet about 42 points minimum damage with a couple of items and a bunch of feats.
D