The old Soviets had some far ranging plans for this air/sea platform. The tubes you see were for anti-shipping missiles - see below'
Another mission role would have been as a troop carrier for VERY RAPID amphibious landings. At 300+mph, these could be from under horizon to beach in minutes!
SSN-12 SANDBOX SSM initially like on KIEV “carriers”. updated to SSN-19 SHIPWRECK.
the ME-262 was so vulnerable on take-off and landing the Luftwaffe assigned FW-190 squadrons for cover during those transitions.
It was for rapid deployment troop transport on water