

The next, confirmed, implementation of the U.S.S. Their armament of MP5 submachine-guns was also echoed by later units. While not sporting their later comrades' trademark gas masks, the unit did share similar tactics employed in September 1998, namely the operation in two-man cells. Spencer ordered his colleague's execution. increasingly paranoid over Marcus's research, Oswell E. The first known assignment of the U.S.S., was the order placed for the assassination of Dr.James Marcus. One of the most well known members of the U.S.S. The Rockfort Island Military Training Center, trained recruits to Umbrella's paramilitary taskforces until the island's capitulation in December 1998. were specially trained "black ops" unit dispatched by Umbrella.

As opposed to the UBCS, who were mainly used for "Cleanup" work, the U.S.S. The Umbrella Security Service (abbreviated "U.S.S.") was an Umbrella elite special forces taskforce.
