DTAS is an entirely new PvP game mode (actually a recreation of a game mode in the early 2000s UT mod Infiltration) where both teams spawn in a random spot on the map.
The Defenders then have a short amount of time to place a flag, which marks the centre of a capturable zone. The Attackers must capture the zone, by getting a minimum of 2 attackers in range. The defenders can block an attack by getting a minimum of 2 defenders in range.
The Attackers can win by wiping out all defenders; the Defenders can win by killing all but one of the attackers.
Matt "Fatmarrow" Farrow — who programmed this game mode — created a short video explaining how it all works.
As with most game modes, admins can tweak several parameters to their liking.
Fox Hunt is a further new game mode hidden within DTAS (see above).
When there are insufficient numbers of players on the server to start a DTAS round (by default: 6), the Fox Hunt mode will be engaged.
In this mode, one Defender is designated The Asset, and all players will receive an approximate distance (but not bearing) to their position.
A reduced time limit is automatically applied when Fox Hunt mode is engaged.
Defenders have a flag to place within the first 10 ~ 15 seconds of the round start that determines the capture area.
Attackers should capture the objective area from the defenders before time runs out, while defenders need to prevent them from completing their mission. Game is played in a "best of" system.
Tip - use your tactical watch to learn objective direction information and distance to the objective!