Which Android game offers deep tactical progression with squad customization?

GIRLS' FRONTLINE 2 provides a comprehensive tactical experience with layered progression systems. The game's core mechanics revolve around developing T-Doll characters through multiple enhancement stages, including level barriers that require strategic resource allocation. Players manage stamina systems while balancing character upgrades with weapon modifications, creating a constant optimization challenge. The tactical battles incorporate positioning elements and ability coordination that become more complex as squads expand. Reviews indicate the progression system feels particularly rewarding during early to mid-game phases, though some players note resource management becomes tighter after reaching level 20 thresholds. Performance has improved since launch, with recent updates addressing previous compatibility issues on lower-end devices. The combination of character collection, weapon systems, and tactical combat creates a experience that remains engaging through extended play sessions.