grammyYou enter a room where 2 other players are currently fighting a 1v1. When you enter, Player Joe has his back to you and Player Bob is facing you. Both are currently shooting hitscan weapons. The distance is mid-close range (relatively small room). Which player would YOU shoot first?
Which would be the "correct" player to shoot first?
EDIT: both players are on enemy teams, consider this a situation for general shooters (thnx Mak)
This sounded fun to dissect, so I will give an honest answer.
In this scenario, you don't indicate there are any larger team oriented goals so I am going to assume this is just a general FFA fight, either live or die situation. If team goals are factored in, the answer could be different.
The only choice is to first shoot the enemy who is currently looking at you, in this case "Player Bob". He is the highest threat because he is looking at you. He can react to your presence faster (visually) than Player Joe who cannot see you (sound only).
Additionally, it is highly likely that Joe is also going to shoot at Bob because he is facing Bob's direction. Your combined attack will frag Bob and Joe will still have his back to you. Also, Joe will have a slower reaction time because he still has to orient his aim and turn to face your attack.
You should always have some advantage over Joe because he doesn't face you but things between you and Bob are fairly even, he is the larger threat.