
The remaining amount of waves to spawn for the mission is shown in the bottom-left corner to the right side of the other indicators. The number of active players affects the amount of AI units which is being spawned by the game, for example when there are only five players then the game will spawn only half of the normal amount of planes. The AI can use three unit types: bombers, attackers, and ground artillery units. Players use aircraft to defend the base at the centre of the map which is located under the spawn zone.

The minimal required amount of points in a battle to get the full reward (RP and SL amount) is 1,500, everyone after reaching it will get the same amount of RP and SL.

In addition, the player's first battle of the day gives a special reward depending on the mission length (how many waves have been defeated). Rewards are given based on how long the player survives the mission. Unlike in other modes, it is required to pay SL to spawn in the vehicle (0.8 x the vehicle's AB repair cost), instead of when the player's vehicle is destroyed.

There is no limit for how many times players can spawn the same vehicle, so it is possible to bring only one. This game mode uses the damage and flight models, and other mechanics, from Arcade Battles (including rearming in flight). The main objective is to defend the base from several waves of enemies. Assault Mode is a cooperative game mode for aircraft, ground vehicles and helicopters where players fight against the AI.
