Ace Combat 8 Mission 30 final collision: targets, positioning and failed attempts

Recognize the final charge

The mission walkthrough places the charge after the surfaced submarine’s VLS and subsequent underwater launch-tube objectives. Removing those earlier targets does not finish the encounter. Prepare for another attack instead of flying away as soon as the previous group disappears.

This page addresses stopping the collision with Endurance. It does not establish the complete Perfect Guardian medal route or a guaranteed S-rank threshold.

Line up the marked components

1. As the final phase begins, locate the submarine and its actual TGT markers. Do not spend the opening attack merely spraying an unmarked section of hull.
2. Use Kmarrot’s reported approach from behind, with a slight downward angle. Arrange a usable line of fire before spending ammunition.
3. Aim at each marked component and move on when it is destroyed. Keep checking for the remaining targets instead of assuming the first large explosion ends the objective.
4. Adjust position when the selected component is obscured or your shots miss. A stable firing pass is more useful than continuing to shoot an unreachable marker.
5. Confirm that the collision is prevented and the mission advances to completion. Check any separate challenge award afterward.

Kmarrot describes this in a completed Ace guns-only run and reports that wingman bombs helped. Their account supplies a practical firing position, not a universal hit count or proof that every aircraft can finish from any distance. For the campaign weapon restriction, use the guns-only result checks.

Targets remain even though shots seem to hit

Compare these individual successes with your failure; change one factor on the retry rather than combining them into an alleged guaranteed fix.

• Attack timing: Gamerch #67, nretvryw, reports clearing after stopping squad attack orders and waiting for TGT markers before opening fire. Their explanation about prematurely destroyed components is a theory, not a verified engine bug.
• Gun choice: #69, tbph0lg6, reports a MiG-21 clear on the easiest difficulty using its main gun after repeated main-gun-plus-MGP failures. This does not establish that MGP always fails.
• Aircraft: #54, dnbqidya, follows up their #37 failure with a successful FA-36 retry after using a MiG. Other attempt details are not controlled.

For a timing retry, withhold opening attacks until the markers are present, then resume the component sequence. If trying another aircraft, select one you already own and preserve the goal of any restricted campaign run. A loadout change that clears the mission can still be wrong for a separate aircraft-type challenge.

Distinguish a late arrival from missing mission events

Gamerch #48, rjkryf8c, reports starting too far away to stop the charge, then clearing after a checkpoint retry. Use that case to check positioning; it does not prove that checkpoints repair every failure.

Comment #42, ndccr6r9, instead reports no transition, radio, target markers or remaining-distance display after the UAV scene. Their checkpoint retries repeated the problem, and even the collision did not produce the normal failure state. No successful repair for that exact symptom was established. The adjacent restart success in #43 concerns a different loading freeze.

If the normal targets exist, work through aiming, distance and the reported timing retry. If the objective sequence never appears, save a clip and note your platform/build before a normal mission restart or support report; there is no reason to keep repeating weapon comparisons against absent targets. This is a diagnostic next step, not a verified recovery method. Do not delete a save to test it.