Dunno if there's some confusion here, but the shoretroopers are not the only ones to use the E-11.
Shoretroopers use both the new E-22, and the Rogue One version of the E-11:
The Rogue One E-11 is also used by standard stormtroopers and other Imperials and is only superficially similar to the OT E-11:
S&T/Matrix Airsoft Sterling base, different Hengstler counter, different T-track, different cylinders, different scope rail, and with an added flashlight. The only shared component between this E-11 and any of the OT versions is the M38 scope.
It seems like if a Force Unleashed E-11 gets its own subforum, the Rogue One version should too.