Complex sentence: This idea of "multiplication" was originally developed as part of the similar LoADS ABM, which would be based along with its radars and computers in a canister that fit inside a MX missile silo.
Split into simpler sentences: This idea of "multiplication" was originally developed as part of the similar LoADS ABM. The ABM, with its radars and computers, would be installed in a canister that fit inside a MX missile silo.