"Operation Crimson Emperor" The Defender is a mission for 1st and 3rd Elements of Delta Squadron in Airforce Delta Strike.


The final battle is at hand; the main O.C.C. fleet is directly ahead of the E.D.A.F. fleet, and is protecting the O.C.C.'s L-2 Colony. It will be a do-or-die battle; if the E.D.A.F. lose this fight, the war is over, having truly a scratch fleet against the O.C.C.'s incredible power. And the worst part is, they're not even sure of the sheer scope of the enemy fleet due to a lack of radar signal. And even more unfortunately, the E.D.A.F. fleet will fire nigh-indiscriminately when the enemy is in sight. The enemy is seemingly against the wall, so the battle will be fierce, especially since the E.D.A.F. is running out of firepower.

Delta 1st and 3rd Element is sent to protect the fleet from spacecraft during the battle, much like the previous skirmish. They manage to protect the fleet as the enemy is dealt a significant blow, winning the battle. However, after returning to base, it is discovered that what they assumed was the L-2 Colony wasn't their main base after all; and in fact, have been sending an receiving freights to and from Mars. The mysterious Navigator "group" that the E.D.A.F. assumed was in control of the O.C.C. doesn't even seem to be a "group" at all, rather a single being, and is most likely not a human. Indeed, it turns out that the O.C.C. had sold out Earth to Mars to win the war against the E.D.A.F. with the Mars aliens' incredible technology. And such, they must now go to Mars and put a stop to the radical O.C.C. members, being led by the Navigator, once and for all...


It's Skirmish except slightly more complicated. The waves are exactly the same as Skirmish; at first, you're dealing with A-27Ps, and then you must deal with Type-R3: Comps and Francine Davout in a Vamp, who attack the fleet. The gameplan of this mission is honestly the exact same as Skirmish, so treat it much the same way.

Enemy List

Enemy Unit Number HP Score
Type-S2: SMS 1 A 70,000
Type-S3: SBB 4 A 50,000
Type-S4: SCV 4 A 80,000
Type-S1: SDD 6 A 50,000
Battery X A 5,000
Francine* 1 A 120,000
Type-R3: Comp 1 A 10,000
Type-F3: A-27P 18 A 10,000
Type-F4: F-32P 6 A 10,000


The reward for this mission is 150,000 credits plus a variable amount depending on how the enemies were taken out. Rush Into the Red Star is also unlocked.



  • This and The Decisive Battle are derivatives of one another, having identical enemy layouts, but different required targets, similarly to the later Intercepts.
  • Unlike its counterpart, the post-mission text scroll does not play after completing this mission.


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