Choppa An Orc warrior on foot armed with a single choppa adds +1 to his Strength in the first round of a combat when he charges. This bonus does not apply if a weapon is carried in each hand, or for Boar, Chariot or monster riders - in such eases the weapon's natural brutishness is cancelled out by the difficulty of wielding it.
The Choppa bonus applies to character models on foot that are armed with a single ordinary non-magical choppa. It does not apply to individuals armed with magic weapons as they receive the appropriate magical bonuses instead.
TO put the matter beyond any shadow of a doubt – only Orcs on foot benefit from choppas – not Goblins, not mounted Orcs, not modes on chariots, not small boys called Kevin, not Gerbils, not anything else ever, never, not ever, OK!
Note that the bonus armour save for using a hand weapon and shield does not apply to an Orc wielding a choppa. Foot models with a choppa in each hand (additional hand weapon) do get the normal +1 Attack for having two 'hand weapons', though they lose the +1 Strength on the charge.
Ignore Goblin Panic Orcs expect the smaller greenskins to run awayy and it doesn't really surprise them when they do. The sight of fleeing Goblins and Snotlings simply reminds the bigger and bolder Orcs why they are best. Consequently when a Goblin unit. Snotling Swarm or Snotling Pump Wagon is destroyed, breaks or flees pat. Orc units do not need to test for panic. See the Viarhammer rulebook. pages 80-81