SD Gundam G Generation ETERNAL: 0079 Disc Hidden Stage Guide

To clear the 0079 Side Story Collection Disc hidden stage in SD Gundam G Generation ETERNAL without gacha mobile suits, deploy a coordinated team of development-tree mass-production units that rely on Support Attacks and Chance Step chains. Mass-production suits have lower baseline stats and smaller energy (EN) reserves than prototype machines, so clearing the encounter requires tight defensive spacing and disciplined target sequencing rather than brute force.

Pre-Battle Squad Audit

Before starting the battle, verify that your development-tree machines meet the baseline operational requirements for the stage:

• Terrain Ratings: Deploy units with at least a B-rank (preferably A-rank) rating in the stage's operational terrain (Ground or Space) to prevent movement and evasion penalties.
• EN Reserves: Mass-production weapons drain smaller pools quickly. Check weapon EN consumption relative to the unit's total capacity.
• Pilot Aptitude: Assign pilots whose passive stat bonuses and terrain proficiencies compensate for the lower defenses of non-gacha frames.

Squad Composition and Combat Roles

Organize your development units into complementary roles so they can support one another during every engagement phase.

Pair frontline units with pilots carrying accuracy or defensive skills to ensure they survive retaliatory fire while holding positions.

Target Priority and Attack Sequence

Mass-production units lack the solo output to destroy elite commander units in a single combat action. Execute attacks in a strict sequence each turn to maximize team damage and preserve actions:

1. Weaken with Artillery: Fire on elite targets with long-range units from outside the enemy's counterattack range to soften their defenses.
2. Trigger Support Attacks: Initiate close-range strikes with your vanguard while positioned adjacent to allies, bringing multiple suits into the combat exchange simultaneously.
3. Trigger Chance Steps: Direct your designated skirmisher to land the finishing blow on weakened units. Defeating an enemy resets that unit's movement and allows a follow-up action.
4. Build Pilot Tension: Stacking consecutive kills raises pilot Tension toward Super High, increasing critical hit rates to close the damage gap against high-stat bosses.

Keep track of remaining EN before triggering repeated Chance Steps. A unit that depletes its EN deep within enemy territory cannot retaliate during the enemy phase.

Positioning and Threat Management

Hidden boss units possess attack ranges capable of destroying fragile mass-produced units in one engagement. Control incoming damage through structured positioning:

• Hold Formation Outside Threat Ranges: Form a defensive wall just outside the boss's attack reach during the initial turn. Force minor escort units to advance toward you first.
• Clear Escorts Before the Boss: Eliminate the forward escorts on your turn so your squad can engage the boss without taking flanking fire.
• Maintain Adjacency: Keep support units directly adjacent or one tile diagonally behind your vanguard units. This preserves Support Attack links and prevents lone units from being surrounded.

Upgrade Priorities for Development Units

When allocating modification points to mass-production units for event disc stages:

• Accuracy First: Upgrade primary weapon accuracy before raw power. Missing an attack ruins your planned Support Attack chain and wastes actions.
• Mobility Thresholds: Invest in unit Mobility only up to the point where standard enemy escorts have low hit chances, then redirect remaining resources into unit HP and defense.
• Standardized Pathing: Prioritize development lines that share common weapon types across chassis to minimize redundant pilot specialization.