TShU-1-7 Shtora-1 EOCMDAS (courtesy of Steven Zaloga and TANKOMASTER) The Shtora-1 EOCMDAS (electro-optical counter-measures defensive aids suite) is one of the several unique features of Russian MBTs that distinguish them from the rest of the world. It was developed by VNII Transmash in St. Petersburg in cooperation with Elers-Elektron in Moscow, and introduced somewhere around 1988.