Skyscraper
Adventurer
I would agree that the action of jumping out should be the standard action. Could the orcs not charge from their initial position, instead of "jumping out" and then moving to attack?
Anyway, assuming an orc is located 1 square away from another character at the beginning of a surprise round (however that happened), i see it as quite plausible that this orc would have the wrong balance to get anything going quickly enough to attack the character. Think about sports: sometimes, in close quarters, you just to have the space to get a move going. Whereas the orc 4 squares away has that space and can dive headlong into a charge.
Sky
Anyway, assuming an orc is located 1 square away from another character at the beginning of a surprise round (however that happened), i see it as quite plausible that this orc would have the wrong balance to get anything going quickly enough to attack the character. Think about sports: sometimes, in close quarters, you just to have the space to get a move going. Whereas the orc 4 squares away has that space and can dive headlong into a charge.
Sky