RO has no crosshair, server side deathmessage setting, a minimap with marker (in real life, you would have had a map, and you would know where you were).
And the HUD is a timer (for round time), a little man to represent damage, and a thing which tells you type of nade, and # of clips of ammo (not # of bullets in the clip).
So yeah, not much new about this

(And anti-tank shells can bounce of tank armour)