The Tigran Armored Personnel Carrier is nicknamed the Heavy APC due to its weight. However it can only transport 4 soldiers at a time, but these soldiers are some of the heaviest troops in the UGI. Packing heavy firepower this vehicle is armored so that it can put these soldiers in the back of enemy lines to either destroy the enemy from behind or die trying.
It appears to be a unarmed vehicle but its actually decieving it is armed with a single railgun that puts out 1200 rounds a minute and can pierce most enemy armored vehicles. Its designer is unknown though.
It was put into service literally overnight its designer was kept secret and it moved into combat near the end of the Novan War, and saw action in the Corporate war. SECFORCE actually uses this vehicle as a police cruiser.