The final mission takes place some time after the six main campaigns. Following the constant skirmishing between nations, the Kingdom of Sal Kar begins to feel threatened. Claiming its borders are at stake, the Kingdom builds a forward base in the Tajin region, on the shared border of all three nations. The neighbouring nations of Morskoj and Tarakia denounce the action as aggressive and all 3 nations prepare for war. After the Sal Kari base is attacked, the Mercenary is dispatched to the region with a team of HOUNDs to investigate. Upon arrival, the Mercenary finds the base and the other HOUNDs destroyed by Cerberus, revealed to be led by Edguardo. The Mercenary engages the Cerberus Squad alone and destroys Edguardo’s HOUND. Before dying, Edguardo acknowledges the Mercenary’s skill but admits that the attack on the base has made war inevitable. With the base attack acting as the final straw, all 3 nations simultaneously declare war on each other, leading to the Neroimus War.