Overwatch - Melee
The Overwatch Action, detailed on page 224, also applies to melee attacks. Like the ranged version of Overwatch, no movement is possible as part of the Overwatch action. Unlike the ranged version, Melee Overwatch does not trigger a Pinning Test.
This would be used to guard someone using a melee weapon – or to make a melee attack on someone that comes through a door or around a corner.