That would be Monarch of Evernight https://www.novelupdates.com/series/monarch-of-evernight Mc's a sniper, a good one at that. But the novel is much more It explores the intrecacies of human/monster (vampires, archnes, etc) relationships. It'll blow your views on good and bad The novels's not only about the Mc, it's also about the world, the differents factions, Daybreak (humans) and Evernight (monsters). Their societies, customs, etc It's slow (medium paced) at first but picks up pretty fast from the 2nd book. Hang on if you pick it up, it's a gem. Spoiler: Spoiler One of my favorite scenes was where there was a war between daybreak and evernight, tens of thousands were killing each other but in the meantime the big bosses of the two faction were chatting like friends on a far mountain. The war was just two wear each other's armies out LOL
You can try Fatal Shot. It is not that of a fantasy, it is sci-fi rpg. Some similar to Matan's Shooter.