The Autumn War Series by Snek Guy

Set in the Pinwheel universe, where an alliance of friendly species fights a never-ending war against the merciless insect hordes, the mission to retake a lost colony is underway.The largest Coalition fleet ever assembled descends on the moon of Kerguela , where a peaceful civilization met its end at the hands of a marauding hive fleet three decades prior... moreSet in the Pinwheel universe, where an alliance of friendly species fights a never-ending war against the merciless insect hordes, the mission to retake a lost colony is underway.The largest Coalition fleet ever assembled descends on the moon of Kerguela , where a peaceful civilization met its end at the hands of a marauding hive fleet three decades prior. Leading the campaign is Xipa, one of the few survivors of the original invasion, bent on righting the wrongs of her past and avenging her fallen flock. When she intercepts a mysterious signal in orbit, she assembles a crack special forces team to scour the overgrown forests and abandoned cities for answers.Evan is a seasoned Marine, deploying from the UNN Spratley as part of the ground invasion force. His armored battalion lands on the moon's surface, ready to face the Bugs head-on, but all isn't as it seems. In the thirty years since the moon was captured, its occupants have adapted to its environment and changed their tactics in unforeseen ways. Now, Evan and his comrades must face off against the hive's biomechanical terrors, all the while playing a deadly game of cat and mouse with a new breed of insect.The flames of war and passion rage around the moon, while conflict between both friend and foe strains the alliance to its limits. less

Xipa and her team make inroads into an abandoned Valbaran city in search of answers, while Delta company launches daring raids against Bug infrastructure on the moon's embattled surface.

Xipa's fight for survival becomes more desperate, while on the other side of the moon, Evan and his friends face off against the Red King in a deadly game of cat and mouse.

Evan and his squad fight their way across a blasted hellscape of trenches and fortifications as they push toward the Queen's mountain stronghold, intent on delivering a killing blow to the Bugs on Kerguela. With all of their cards on the table, the Coalition fleet must band together and use every tool at their disposal if they want to put an end to the alien occupation of the moon.