Z Route: Redemption Base Level 27 Upgrade Priority Guide

Upon completing Base Level 27 in Z Route: Redemption, pause headquarters progression and upgrade your internal infrastructure before pushing toward Base Level 28. Rushing your headquarters without upgrading supporting structures inflates your power rating without providing the combat research, march capacity, or hospital space needed to survive alliance battles and Capitol sieges.

Immediate Building Upgrade Priorities

Focus your construction queues on military infrastructure that directly improves combat performance and protects your troops during cross-server events.

To maximize event point yields, schedule these construction milestones during weekly Alliance Competition events rather than applying speedups immediately upon unlocking the queues.

Tech Center 27 Research Focus

Upgrading the Tech Center to Level 27 is your primary task after completing the base upgrade. Advanced research branches provide permanent stat multipliers that outweigh raw hero levels in open-field skirmishes.

1. Marching Capacity: Maximize deployment limit nodes first to scale your effective squad damage and health pools.
2. Core Troop Attributes: Invest into attack and defense modifiers that support your primary squad composition, especially teams utilizing UR heroes like Aria and Li.
3. Alliance Assists: Request maximum alliance help clicks on every multi-day research queue before applying research speedups to conserve your inventory.

Drill Grounds and Squad Formation

Upgrading Drill Grounds to Level 27 expands your deployment limit, allowing squads to absorb sustained burst damage while maintaining pressure in multi-wave combat. Align your expanded troop capacity with a structured formation:

• Frontline: Deploy sturdy defensive units to absorb incoming fire and shield high-damage backline units.
• Midline/Support: Position support heroes such as UR Aria to cycle defensive shields and disrupt incoming enemy paths.
• Backline: Place primary damage dealers like UR Li safely in the back to deal continuous damage without suffering immediate attrition.
• Troop Tiers: Fill all newly unlocked march slots exclusively with your highest-tier trained soldiers (such as T9 units) to maximize rally contributions against world bosses and enemy strongholds.

Resource Protection and Hospital Capacity

Base Level 27 upgrades and research nodes require high amounts of food, iron, and coin, making unprotected bases prime targets for enemy raids during kill events.

• Keep Resources in Bags: Open resource crates and inventory bags only when you are ready to initiate a building or research project. Never leave unspent resources exposed above your protected depot thresholds when peace shields expire.
• Heal in Small Batches: If attacked during Capitol or Rust City events, heal wounded units in small increments rather than clearing the entire queue at once. This approach allows alliance help clicks to quickly clear hospital beds and prevents incoming casualties from exceeding capacity. Exceeding hospital capacity results in permanent troop loss rather than standard healing.