Enter a game in 'Critical Strike Global Ops' by selecting a room. Move your operative using the on-screen movement buttons. Aim at opponents by swiping the crosshair on the screen. Attack by clicking the attack control. Swap guns using the armory button to respond to different combat situations. Utilize cover and terrain to dodge enemy shots. Play in group or alone modes to fulfill tasks and overcome the rival players. Collect points for eliminations and helping teammates to advance the score table.