SD Gundam G Generation ETERNAL: Expert 30 All-Development Clear

To clear Expert Eternal Road Stage 30 (EX30) in SD Gundam G Generation ETERNAL while satisfying the 10-unit survival condition, deploy ten unique development mobile suits without SP upgrades and support them entirely with SR crew members. Success requires setting up a turn-one perimeter outside the boss's immediate reach, systematically dismantling elite escorts to eliminate crossfire, and manipulating the boss's targeting logic using defensive guard stances.

Squad Restrictions and Role Setup

Completing all target milestones in one run requires building your squads strictly within the challenge criteria:

• No Duplicate Mobile Suits: Every deployed slot across both squads must feature a distinct development machine.
• No SP Enhancements: All units must remain in their base development state without SP conversion or stat upgrades.
• All-SR Supporters: Warship crew and tactical support slots must use only SR-tier characters.
• Distinct Range Roles: Divide the team into high-durability bait tanks, agile mid-range fighters, and long-range snipers.

Because non-SP development units have low baseline health pools, positioning and defensive buffs must absorb incoming burst damage.

Turn 1 Staging and Threat Isolation

Do not charge directly into the map center on Turn 1. Pushing forward immediately allows the stage boss and Vanguard escorts to focus down your mid-range units.

1. Move bait tanks to the outer boundary of the enemy threat zones to trigger initial enemy movements.
2. Form up mid-range and sniper units directly behind your frontliners, outside enemy attack ranges.
3. Activate SR supporter defense and accuracy buffs on units scheduled to take counter-attacks.
4. Hold high-value offensive skills and use normal attacks or repositioning maneuvers to prepare for Turn 2.

Eliminating Escorts Before the Boss

Targeting the boss while escorts remain active risks unit casualties and voids the 10-unit survival milestone. Clear the side units methodically before turning attention to the main threat:

• Target Priority: Focus first on escorts equipped with defense-shredding debuffs or multi-target attacks.
• Standoff Attacks: Initiate strikes with long-range snipers stationed outside the escort's retaliation range to chip away health safely.
• Securing Clean Finishes: Send in mid-range or melee units only to deliver final blows, granting action resets or morale boosts when available.
• Turn Order Tracking: Check the action timeline before ending a phase. Never leave an escort alive at low health if it acts before your next turn.

Baiting Boss Attacks for 100% Survival

The EX30 boss has enough single-target burst damage to destroy standard development units in one hit. The boss AI targets the nearest available unit in its attack range, shifting to the lowest percentage HP target if multiple units share the same distance.

Manage boss targeting through specific defensive steps:

1. Map Danger Zones: Check the boss's maximum movement and attack radius before taking actions, and position fragile snipers strictly outside this perimeter.
2. Assign Designated Bait: Place your highest-durability unit at the edge of the boss's range. Activate defensive guard commands and ensure adjacent ally defensive passives are active before ending the turn.
3. Rotate Damaged Frontliners: If your bait tank takes chip damage, move it back. Place a full-health unit into the closest grid space to take the next hit, and save SR recovery skills for units that take critical damage.

Safe Damage Cycles

Once all escorts are cleared, isolate the boss and initiate a controlled damage rotation:

• Attack Without Retaliation: Open each round using snipers and weapons that exceed the boss's maximum counter-attack range.
• Count Counter Charges: Only commit close-range attacks when the boss has exhausted its counter-attack opportunities, or when a full-health unit can safely absorb the return fire.
• Avoid Overextending on Low Boss HP: Do not sacrifice formation discipline or risk a damaged unit when the boss reaches critical health. Maintain proper spacing and defensive guards until the final blow to confirm the 10-unit survival clear.