SUSAT

The SUSAT is a scope attachment in Call of Duty: Modern Warfare 2 and Call of Duty: Black Ops.

Call of Duty: Modern Warfare 2
It replaces the ACOG sight for the L86 LSW, which is the only weapon that uses the SUSAT.

The Create-A-Class menu treats the SUSAT as the standard ACOG. This is due to it having the same in-game effect as the ACOG. It appears different to the regular ACOG: instead of having the standard reticule, it has a central needle.

This scope can be found while playing Estate Takedown in Special Ops and Loose Ends in the Campaign, mounted on a L86 LSW in one of the rooms of the safehouse.

Call of Duty: Black Ops
The SUSAT scope is smaller than its Modern Warfare 2 counterpart. It features a fiber optic on the tip of the needle giving better acquisition abilities to the players in dark surrounding compared to its Modern Warfare 2 counterpart.

The SUSAT scope is unique only to the Enfield and L96A1.

Trivia

 * Because it has no electric operation, the SUSAT, along with the F2000's Red Dot Sight, are the only gunsight attachments not affected by an EMP.
 * The Singleplayer/Spec Ops pickup name for the L86 with SUSAT comes up as "L86 LSW Scoped."
 * Some players prefer the SUSAT and therefore the L86 LSW for its larger reticle.
 * The SUSAT has an unusable BUIS (Back Up Iron Sight) on top of it.
 * Notably, the SUSAT is only used on British weapons in the series. Those being the Enfield, the L96A1 and the L86 LSW