Battle Royale Trainer is an awesome FPS sniper adventure game by Trickjump Games Ltd. Battle Royale Trainer lets you practice your combat skills with a wide range of weapons, scopes and attachments against AI opponents and targets, honing your skills until you can snap-shoot, control recoil and head-shot your opponents at any distance like a pro.
You could train on three different scenarios: Urban combat, Woodland sniping and an advanced Firing Range with magnified target view. If you get stuck in the game, check out the video walkthrough and gameplay for the game.