Killed a Capture Trooper using melee


Early in Chapter 4 "Six Months On" - Jungle Valley, you will have a look at the Capture Trooper in the cutscene where he stabs an ISA soldier, but you wont encounter him until after activating the uplink later in Cruiser Wreckage section. Whenever you see similar enemies dressed like the Capture Trooper, standard or brutal melee kill one of them to unlock this.