Why are these guy shooting each other?

[xoxid]

Did I miss a part of the story?

At bug'n'chug

[Star_Waters]

Haha I've never noticed that before but it just looks like you are giving that guy head, just sayin'

[xoxid]

aaaaaand hes farting blood.

[Warl0ck]

Maybe it's Shadow Wars, PvP. Since you're not part of the conflict? My best guess anyways.

[Salen]

I think I've seen that happen once before, where some NPC who shouldn't normally be considered hostile to NPCs is flagged as hostile and the other NPCs go crazy trying to gun him down.

[Daergar]

It's been happening at the Bug since launch, different factions going at it. It's ok not to post when ignorant.

As for why and lorewise, I just assumed they settled their differences with lead, nothing special.

[Whippersnapper]

This happens when mobs get too close to Bug n Chug. Inevitably one npc or other will become a victim of friendly fire, and spur a shootout between all the npcs which will last a while.