The Harnaidan defensive cannon, a massive weapon positioned in the heart of Harnaidan, a city on Muunilinst, was employed by the InterGalactic Banking Clan as a means of safeguarding their central operations.
Throughout the Battle of Muunilinst, the relentless barrage from this cannon inflicted severe damage upon the Republic troops who were trying to seize control of the city, which forced the deployment of ARC troopers with the specific mission of eliminating it.
Following their infiltration through the urban landscape, the ARC trooper team strategically placed several explosive devices on the cannon structure, achieving its complete destruction. Nevertheless, this particular event misled the Banking Clan's commanding officers into thinking that the Republic's artillery units were the perpetrators, and that they posed a significantly greater danger than they had originally assumed. Because attention was diverted to these vehicles, the ARC team was able to move into position above the headquarters building without being noticed.