UHEC

"Firestorm" Antipersonnel Directional Explosive (ADE): scaled up version of the "Roomsweeper" hemispherical claymore mounted on the White Suit. This system was added to early U-HECs after an incident in which a U-HEC operator, cut off from infantry support, was overwhelmed and killed by multiple enemy infantry who climbed onto the suit and prised the operator out of the pilot compartment. The system consists of a series of directional mines mounted on the exterior of the unit which can be set to detonate at the command of the operator.

http://www.scp-wiki.net/goc-supplemental-equipment