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, which is not affected at all by an EMP. 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 to the Enfield and L96A1.

Trivia

 * The SUSAT is of British origin. Fittingly, only British weapons may attach it, similar to the Russian PK-AV, which can only be attached to Russian weapons and the Soviet-wielded Galil.
 * In Singleplayer and Spec Ops the pickup name for the L86 with SUSAT comes up as "L86 LSW Scoped."
 * The SUSAT has an unusable back up iron sight on top of it.
 * When using the SUSAT in Black Ops, the shots land slightly to the right of the needle tip. The error, however, is so marginal that as long as the needle tip is on the target, the shot is guaranteed to hit.
 * With modding, the SUSAT can be put on to non-British weapons.