Sons of the Patriots

The SOP System is an advanced system that allows several members of a military unit to share each other's senses via the Nanomachines inside their bodies. This provides a massive tactical advantage to whomever uses it.

in 2014, Liquid Ocelot captures Naomi Hunter and forces her to create a third generation version of FOXDIE which targets specific Nanomachines and SOP systems.

Metal Gear Online

In MGO, the SOP system will allow players to see where their teammates are at any given time and will enable them to send and receive help messages from allies. The player can also capture an enemy and hack into their SOP system to allow them to see where enemies are.