How to Prepare for HQ40 in Last Z: Survival Shooter

To prepare for the leaked Headquarters level 40 (HQ40) expansion in Last Z: Survival Shooter, stop spending critical materials on secondary upgrades and start banking unopened resource chests, leveling prerequisite buildings, and stacking construction speed buffs.

HQ36 through HQ40 upgrades represent an exponential jump in requirements, requiring billions of resources, extensive prerequisite chains, and months of base construction time. Preparing in advance prevents stalled progression when the level cap increases.

Stockpiling Resources and Managing Bottlenecks

Late-game base upgrades shift your primary progression bottlenecks from food and wood to iron and coins. While food and wood can be gathered relatively quickly on world map tiles, iron and coin generation rates lag significantly behind the amounts required for HQ38 through HQ40.

To protect your stockpiles:

• Keep resource choice chests unopened in your inventory. Resources inside chests cannot be plundered during enemy raids and are exempt from passive troop upkeep consumption.
• Halt non-essential coin spending. Avoid draining coins in black markets, secondary hero shops, or non-critical equipment refining until your core structures are funded.

Clearing Prerequisite Buildings

Every headquarters tier requires specific secondary structures to reach the current cap before the main upgrade can start. Completing these prerequisite buildings ahead of the expansion prevents sudden delays.

Prioritize these facilities in order:

1. Defensive Wall: This building is mandatory for every headquarters upgrade. It demands heavy amounts of iron and coins along with extended timers, making it the most critical prerequisite to finish early.
2. Drill Grounds and Barracks: Headquarters tiers typically alternate between these military structures. Keeping your primary training facilities capped ensures your troop strength keeps pace with base progression.
3. Warehouses and Depots: Leveling storage facilities expands your protected resource limits and raises storage thresholds to accommodate high upgrade costs.
4. Research Institute: Upgrading the institute is necessary to unlock the higher-tier military research branches tied to expanded headquarters levels.

Time these prerequisite upgrades during construction days in Alliance Duel to collect milestone reward chests while clearing prerequisites.

Stacking Construction Speed Buffs

Base construction timers for the HQ36–HQ40 bracket span months. To conserve thousands of hours in universal and building speedups, always apply all available time-reduction buffs before initiating the upgrade prompt:

1. Talent Tree: Activate the Construction Speed branch on your commander development skill tree.
2. State Titles: Request the Construction Minister or equivalent state title during peaceful rotation windows for a direct percentage reduction on raw build time.
3. Temporary Buffs: Consume construction speedup items and secure alliance rune buffs prior to confirming the build.
4. Alliance Assists: Initiate the construction within active Alliance Territory buffs, then wait for your alliance members to max out help requests before using any inventory speedups.

Applying these reductions before locking in the build cuts dozens of days off HQ38, HQ39, and HQ40 construction timers.

Balancing Base Progression with Combat Research

Pushing directly to HQ40 increases your account's base power and matchmaking weight in competitive modes such as Canyon Clash and State vs. State (SvS). If your combat tech branches—such as Leaders' Will, unit lethality, and advanced formations—remain underdeveloped, rushing HQ levels leaves your base vulnerable to higher-tier opponents.

Dedicate construction-focused Alliance Duel days to leveling headquarters prerequisites, but reserve universal speedups and specialized combat badges for core military research. Maintaining balanced combat research ensures your troop performance matches your higher headquarters tier.