The SR2 . designed after the collector attack which killed Commander Shepherd. Cerberus The Humanity first secret company which coudl be considered a terrorist group dedicated billions of credits to build and staff the SR2 This Frigate is based off of the Alliance Navy's Frigates. being 30 meters longer than the small light Frigates. and 10 meters wider this ship is also armed with Javalin Disruptor Torpedos for anti missile or small anti air/ship combat also with the devastating Turian Built Thanix Cannon which fires super molten metal added with a speed which can accelerate up to near FTL Faster Than Light Speeds which then explodes on impact with catastrophic force.
The ship has a oversized Tantalus Drive core which allows the ships stealth systems to work longer allowing the possibility of being detected by electromagentic sensors to be minimal, as long as no other power discharges are recorded such as firing the weapons or activitaing FTL jumps or Mass Relay Travel.
The SR2 is also protected by both Ablative human and Asari Silarus armour to which can survive massive heat or radioactive forces. combined with the Kinetic barriers and Multicore Shields whch can slap aside weapon discharges or munitions fired upon the target.
With all the Upgrades to the SR2 it makes her the most effective and powerful ship in the Cerberus/ Alliance fleet.