In Into Darkness, Kirk decides to go down to the Klingon home world to apprehend Harrison, but is rightly very worried of provoking a war with the Klingons, if discovered trespassing, so he has the landing party disguise their clothing as arms dealers (but no facial disguise??!). Yet, when an incident does happen, Kirk and his landing party shoot with lethal weapons (if you play the action on slo-mo, you see blood coming out of the Klingons when they are shot by Kirk, with holes burned in the wounds. If Kirk was trying to avoid an incident, shouldn't they have brought weapons in set on stun, not kill, so those Klingon soldiers, who were guarding from intruders, could go home to their families after they woke up from a stun? You would think they would try to keep the carnage to a minimum ... Though Harrison ultimately came in and dealt with the rest of the Klingons... The Klingons were essentially just trying to stop intruders on their world and do their job ...