What better way to welcome them than by punching them square in the face with a melee attack.
Here's how to score a knockout punch.
Rainbow Six Siege: How to Get Melee
Ready for a fight? Good, it's nice and easy to slap fools upside the head.
On PC, melee attacks are as simple as tapping the 'V' key.
PS4 and Xbox One
As with many shooters on console, simply press in the right thumbstick to attack an enemy up close.