You asked for OCS compatible body armour, and here it is.  All sculpted model of the classic ballistic plate carrier vest with and without modular attachments.  Menu selectable pattern and color presets, flag patch for automatic display of faction flag and/or custom user flag.

But, not only are they pretty, but each provides 3 OCS armor points to mitigate damage from projectiles and help you live to fight another day.

Further information and the user manual can be found here