Mission 20
Ace Combat 8 Mission 20: Escort Orbiter — Operation Migration Keeper
Mission 20 — Escort Orbiter (Operation Migration Keeper). Escort/orbiter protection with elite Lux Lunae. Ace note: Lux Lunae 100th & 99th (auto). Periodus (Su-35S).
Mission Play-sourced
Mission card
- Title: Escort Orbiter
- Operation: Migration Keeper
- Number: Mission 20 / 30
- Mission medal: none
Objectives & approach
Escort/orbiter protection with elite Lux Lunae. Pop a B-2 for Periodus while never abandoning the escorted asset.
Hidden ace / Assault Record
Lux Lunae 100th & 99th (auto). Periodus (Su-35S): destroy at least 1 B-2.
Named aces need Veteran+. Finish the mission after the kill. Full table: hidden aces.
S-rank tips
- Replay in Free Mission with a role-matched jet and dual SP weapons.
- Farm high-value TGTs early; don’t waste the clock on low-point leftovers until you’re near the threshold.
- On Ace, expect tighter enemy fire — use Cover and terrain, rearm if the map allows mid-mission landings.
People also ask
What is Mission 20 called?
Escort Orbiter — Operation Migration Keeper.
How do I get the mission medal?
This sortie has no unique mission medal — focus S-rank and Assault Records.
Can I replay it later?
Yes — Free Mission after the campaign.
Further reading
Related guides
Mission 19 · Mission 21 · Campaign · S-Rank · Hidden Aces
Primary: Ace Combat 8 Mission 20 Escort Orbiter. Also: Operation Migration Keeper, S-rank, walkthrough, Assault Record. Independent fan guide — verify in-game if patches change conditions.