Clan Mongoose introduced an upgraded version of the Locust in 2832. The new version retained the speed of the original, while enhancing firepower with advanced laser weaponry. The advent of the OmniMech, however, halted Locust IIC production, and the 'Mech was relegated to second-line duty.
Prior to their 3064-65 incursion into the Lyran Alliance, the Jade Falcons were faced with the task of equipping six second-line Clusters. Charged by their Khan Marthe Pryde, the technicians at Olivetti Weapons poured over realms of technical data before identifying the Locust IIC as a design that could be reproduced easily and cheaply.
For such a small 'Mech, the Locust IIC is surprisingly robust. Above average speed offsets the lack of jump jets.
Both ComStar and the Lyran Alliance captured a number of Locust IICs from the Jade Falcons in the counter-offensive that ultimately halted the Clan advance.

Source: Technical Readout Project Phoenix
Armament:
6 Heavy Small Laser
1 ER Medium Laser