In Capture the Flag mode (CTF) the objective of the game is not to just destroy your opponent, but instead to capture their Flag building. This Gamemode differs from Standard (Deathmatch / DM) gameplay in several ways to create a more balanced and unique playing style. Each player begins the game with a Flag building / unit.
The Flag is the heart of your base and will act as a construction yard, although it differs in several ways. Flags are indestructable and can not be destroyed, they can only be captured via the traditional CnC Engineer way. Very limited base construction is supported from your flag, only a few Power Plants, one Barracks / Hand of Nod, one War Factory, one Radar and one Helipad can be constructed during a match with very limited rebuilding oppurtunities (bases similar to that of CnC: Renegade) so extra care must be given towards the protection of those buildings.
The arsenal of units available to you is also drastically changed during CTF mode. As with buildings, a very limited supply of buildable units will be offered to you which consists of; infantry, a basic tank, a scout vehicle and a basic transport. To keep gameplay balanced, new / different units will take some of the roles of the familiar faction units. In this case the Hover Tank, Scorpion Tank and modified Phase APC (no cloaking) are used. Nod also has access to a vehicle air-lift unit similar to the Carry-All. The Costs of these units are also modified to balance gameplay and to prevent spamming.
Supply Depots are your primary source of income and additional supplies. Supply Depots will generate a Goodie Crate after a timed interval (varies between map and the depot) which contains; credits, additional unobtainable units, powerups and the occasional superweapon. As you have limited units and credits Supply Depots are invaluable to gaining needed funds and powering up your team of units, looking after precious units and utilizing powerups will allow you to create unique task forces. Random crates can also be utilized to gain similar benefits (most / all negative Crates are removed).
The AI in CTF mode will also be especially scripted for the mode. The enemy AI will patrol and guard the Supply Depots as well as collect the goodies for themselves, protecting your depots is critical. The AI will also keep up a strong offensive front and will stop at nothing to slip an engineer into your base!
This mode is still under development and is prone to change*