Excalibur Onslaught II

 is a Special Raid mission in Ace Combat Infinity that has a chance to appear after completing a previous Online Co-Op Mission. It takes place in an unknown location, where the USEA Federation is operating a giant laser tower named Excalibur Red Sword. Players must work together to destroy it.

Briefing
''It has been determined that the enemy has rebuilt and applied further modifications to Excalibur. As with the enhancements made to Stonehenge, they are clearly seeking to imrpove durability of the weapon through a complete review of the materials used in its construction. Head immediately to the target zone before this weapon starts to have an effect on other operations, and destroy the newly enhanced Excalibur, codenamed "Red Sword."''

Objectives
Players spawn at the southeast corner of the map. Excalibur is located roughly in the center of the map, and will immediately commence firing on the players. The tower will fire its laser at the players directly. So, players are to avoid flying in a sector of the map indicated to be the tower's effective line of fire.

Radar jamming facilities consisting of radar bunkers with AA guns, XSAMs, and tanks as their defenses are set up in four locations and all of them are located between the players' spawn point and the Excalibur. Players' first objective is to destroy all of the jamming facilities to clear the jamming.

Next, players must fly to the tower and destroy its power generators and targeting towers. At this point, the enemy will launch MQ-90 drones. Also, the tower will now defend itself by firing at a series of reflective mirrors equipped on trucks and airships to build a network of laser beams.

After the generators and the towers are destroyed, players must destroy Excalibur's topmost laser port.

Finally, players must destroy the tower itself by aiming at its center in order to complete the mission.

A Rank
''Your skillful flying has silenced Excalibur Red Sword and caused critical damage to its defenses. You did more than enough in the face of this extremely difficult mission.''

S Rank
''Your exemplary flying has completely silenced Excalibur Red Sword and wiped out all of its defenses. The threat to our forces has been eliminated, and our operations in enemy territory will surely pick up the pace as a result.''

Trivia

 * The background music of this mission is "Excalibur" from Ace Combat Zero: The Belkan War Original Soundtrack.
 * Except the players' plane introduction part, the way Excalibur is introduced at the beginning is about as same as in Ace Combat Zero.