About FROSTLINE -- TACTICAL STRIKE

Out-gun a red squad in a frozen container yard: aim, reload and land headshots before the clock runs out.

On a computer: WASD move, mouse aim, click fire, R reload, Shift sprint, Space jump
On a phone: Left stick move, right drag aim, buttons for fire, reload, jump

er described this game in a sentence on OhMyGames and the AI built it. You can make your own the same way, free to start.