Intricate gameplay details

The most common of the player reviews of ZERO HOUR is to rate it as the most realistic tactical counter-terrorism game, with the main comparison being R6.

ZERO HOUR has more details compared to R6, such as electric switches on every map
This detail means that lighting is a very important factor in ZERO HOUR's gameplay. Because the light can be altered, this leads to a range of gameplay elements, such as night vision cameras for the defending side and tactical torches for the attacking side, and perhaps the inclusion of equipment such as night vision devices in the future.