The shortage of available HEV suits required many Black Mesa scientists to wear cleansuits to survive the toxins released throughout the facility after the accident. Barney's training with a variety of weapons and his cool under pressure allowed him to be very effective in combat. The two teams features a number of selectable character models, each presented with their own biographical information.ДЄs captain of the security guards, Barney dedicated himself to protecting the civilians of Black Mesa against the invading soldiers. There is also a command point mode where teams must take control of four points in the map to score. The player can only carry one Power-Up at a time, and must drop the one they currently own to pickup the new one. The game has Power-Up items that gives its owner enhancements or abilities, inspired by the ones in Quake. The players may join either the Black Mesa team (civilians), represented by the color orange and the Lambda symbol, or the Opposing Force team (soldiers), represented by the color green and the Star symbol. When the player enters a capture the flag game, they must select their side and character, before playing the game. The team who captures the most flags is the winner.

The teams must enter the opposite team's base, capture their flag, and bring it back to their flag in their base to score, also defend their flag to prevent the opposite team from capturing it. In the capture the flag game mode, each team has a flag in their base.

Half life 2 prefabs