 Some enemies are able to see through disguises and can be alerted if the player enters their vision, and all enemies can be alerted to suspicious behaviour which includes picking the lock of a door or looking through a door's keyhole, being in certain stances or having certain weapons visible.Before starting a mission, the player is usually able to select equipment to bring to the mission.Strogov has a carrying capacity limited to one handgun, one long gun and 18 slots for small items such as ammunition and knives; one knife can also be stored in a dedicated slot.