* Allied Primary Objective - prevent the Axis from firing the rail gun.
o Allied Secondary Objectives - capture the depot yard, keep the track switch down, destroy the rail gun firing controls.
o Allied Tertiary Objectives - construct a command post, construct the machine gun nest.
* Axis Primary Objectives - use the rail tugs to load ammunition onto the massive rail gun and fire it.
o Axis Secondary Objectives - capture the depot yard, raise the track switch, construct and defend the rail gun firing controls.
o Axis Tertiary Objectives - construct a command post, destroy the allied machine gun nest.


Fuel Dump

In this mission, the Allied team must escort a tank to the tunnel gate. This is often the most difficult part of the mission for the Allies, because the Axis has the advantage of the high ground—they can easily cover with artillery, airstrikes, snipers, machine gunners, and panzers. In order to keep the tank moving, the Allies must successfully build and protect a bridge that would allow the tank to cross a river. The Allies can also build a footbridge to flank the Axis positions on the high ground. Once the tank destroys the tunnel entrance, the Axis are forced to spawn back at the fuel depot. The Allies must continue to protect the tank until it can destroy the depot entrance and side wall, providing two points of entry. Finally, the Allies must storm the base and pass the barriers protecting the fuel depot, usually by destroying them or bypassing them by reaching the roof of an adjoining building, though this requires a disguised Covert Ops to open a door. However, this is usually difficult to achieve, as Axis will eventually cover the base only; the two entrances are easily defended, especially the "gap" entrance, whose small size is hindered even more by the frequent presence of mines.

A second tactic for the Allies requires a lone Engineer and a disguised Covert Ops (and often an extra team member for support, such as a Medic to help keep the squad alive) (On servers with Double Jump, a lone Engineer can jump his way to fuel dump over wall) They can sneak into the tunnels using a back entrance and reach the fuel depot. The Covert Ops must then open the front door to the base, so the Engineer can enter the base. Once inside, the Engineer then has easy access to the fuel depot and can destroy it before the Axis team has a chance to react. If the defenses have been built around the Fuel Dump by the defending Axis Engineers, the Covert Op is further needed to help sneak through the building to escape through the roof and finally destroy the Fuel Dump. The roof can also be mounted by a single player, but it requires a rather difficult trickjump over the bunker. If no-one is able to land the trickjump alone, he can be assisted by another player who stands still and let's the engineer jump over his head. In official matches, "towers" of two players are allowed but towers of three players will result as a forfeit loss.

An additional tactic that is often used, since the Axis team starts with a bit of an advantage over the Allies, is to cause a distraction by the Fuel Dump area, since it is usually left unattended with the defense focused on the beginning half of the map. If the Allied team is having trouble getting the tank over the bridge, a lone Covert Op that sneaks through the tunnel area and acquires an Axis uniform can make his way through to the Fuel Dump area without being noticed. This Covert Op then makes his way up to the roof area surrounding the Fuel Dump, and can use his Satchel Charge to blow the defense gates around the Fuel Dump. In most cases, this immediately causes the majority of the Axis team to rush to the Fuel Dump to check on the objective. This leaves the Allies the chance to make their way through the beginning half of the map, and escort the tank over the bridge, and through the tunnel to the second half of the map.

* Allied Primary Objective - destroy the fuel dump.
o Allied Secondary Objectives - escort and repair the tank, destroy the tunnel grate, build and reinforce the bridge, build the footbridge, destroy the doors, destroy the main entrance, destroy the side wall, destroy the east and west depot defenses. Destroying the doors makes the bunker spawn permanently Allied.
o Allied Tertiary Objectives - construct a command post, construct the machine gun nest, destroy the axis machine gun towers, destroy the axis command post.
* Axis Primary Objective - defend the fuel dump.
o Axis Secondary Objectives - disable the tank, defend the tunnel grate, destroy the bridge, destroy the footbridge, defend the tunnel doors, defend the main entrance, defend the side wall, construct and defend the depot defenses.
o Axis Tertiary Objectives - construct a command post, construct the machine gun towers, destroy the allied machine gun nest, destroy the allied command post.


Mods

In early 2004 the source code for the game logic was released in an SDK, enabling a number of mods to be created. Previous modifications, such as the popular ET Pro competition mod, couldn't change much. The source code allows more flexibility for mod makers. The game engine remains closed source, but could be released in the near future, considering the source code to Quake III Arena was released in August 2005.