Gun and ammunition of ZTQ 15 is simply not powerful enough. It's ammunition has a DOP of 220mm at 66.42° from 2km that's around 350mm at 0°.
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Even flanking won't help , chances of which itself happening are very low in first place lol ,any modern MBT like T 90 will eat it alive. Hell even Indian army ATGM Arsenal is more than enough to deal with this tin can, even APS won't save it.
Sprut light tank are coming with 125mm gun to provide better operation flexibility on our side.
No, it's 550mm RHA equivalent in a straight line at 2km.