What's a good Android game for casual sniper shooting with infection-themed puzzles?

Infector Sniper 3D is a mobile game that blends sniper-style shooting with infection-based puzzle elements, offering a distinct take on casual action titles. Players take on the role of a sniper tasked with spreading a virus by accurately hitting targets in various 3D settings, such as urban landscapes or isolated compounds. Key features include adjustable zoom controls for precise aiming, progressive level design that introduces new obstacles like moving targets or limited ammunition, and a scoring system that rewards chain reactions of infection. This makes it suitable for users seeking a game that requires both quick reflexes and tactical thinking, such as during short breaks or commutes. However, with a 2.7 rating, reviews indicate occasional performance hiccups, like frame rate drops on older devices, and some players find the ad frequency disruptive. Despite these drawbacks, the core gameplay remains engaging for fans of light strategy shooters, and regular updates from Deli ventures have addressed minor bugs over time. Users report that the infection mechanic adds a layer of depth not commonly found in similar apps, though the learning curve for perfect shots can be steep for newcomers.