Tactical Signals Intelligence Collection System

A Tactical Signals Intelligence Collection System is a kind of intelligence-gathering equipment employed by the United Nations Space Command.

EXO/TSCS
The EXO TSCS chest piece consists predominantly of a dark gray metal collar encircling the user's neck, set upon a thicker armored base that connects to the existing the Mjolnir Mark V chest piece upon which it is layered. The two sides of the collar are cut off beneath the user's chin, and therefore do not meet to create a full circle. Instead, the armored base on each side extends downward along the user's chest, forming two parallel strips which are joined at the sternum by a small connecting segment.

WILLOWKEY TSCS
The WILLOWKEY is a TSCS module worn on the lower abdomen. It is often used by Orbital Drop Shock Troopers as part of their armour configurations. One such module was employed by the Office of Naval Intelligence operative Captain Veronica Dare during the Battle for Earth in 2552, while another such module was used by Corporal Quinn during the Second Ark Conflict.

Halo: Reach
The EXO/TSCS chest is unlockable in Series 5: Anvil of Halo: The Master Chief Collection.

Production notes
The chest piece that would later become known is one of a handful of cut armour sets intended to be included within the release of 2011's Anniversary Map Pack. The chest was first revealed in promotional screenshots for the map pack, though usually obscured behind weapons and character positions. The chest was later revealed as being included in the early Flighting files for Halo: The Master Chief Collection on PC, though little was confirmed of the armour's status until late 2020 when it was officially confirmed to be included in Series 4: Reclaimer. Production issues ultimately pushed the release of EXO/TSCS back to the January 2021 release of Series 5: Anvil.

List of appearances

 * Halo 3: ODST
 * Halo: Reach
 * Anniversary Map Pack
 * Halo: The Master Chief Collection port
 * Halo 5: Guardians
 * Halo Wars 2
 * ''Halo Wars 2: Operation: SPEARBREAKER