Progress from Pistol through vehicles and aircraft toward the reported Supersonic Jet and Elite Tank rebirth milestones without starving the Cash loop.
The corroborated ladder has 27 named standard units. Treat Mammoth Tank, first aircraft, Supersonic Jet, and Elite Tank as planning checkpoints; the live Rebirth panel decides when a milestone actually unlocks the reset.
Each step gives you a visible checkpoint before the next commitment.
Merge identical entry troops and learn the production rhythm. Keep enough Cash to continue spawning after each merge instead of emptying the base for one distant target.
Useful check: Every extra named gap doubles the copies needed under the observed binary rule.
Biker begins the reported vehicle phase at Index 5 and Mammoth Tank closes it at Index 15. Use a nearer target whenever the calculator shows a copy shortfall that would freeze income.
Small Plane begins the reported aircraft phase at Index 16. By Bomber and Supersonic Jet, public footage documents distinct AoE and anti-air roles, so start planning coverage as well as value.
Community sources report Supersonic Jet at Index 22 as the first Rebirth requirement, with a Cash bonus and Elite-tier unlock. Read the current panel before resetting.
Useful check: Model the post-reset Spawn Tier in the named merge calculator before confirming.
Elite Tank at Index 27 is the reported second milestone. The next five tiers have reported values but no stable names here, so follow the live Index after the reset.
A larger Index value does not replace anti-air or AoE coverage for a contested objective.
Use the payback calculator; a positive income gain can still be too slow for the current rebirth horizon.
Supersonic Jet and Elite Tank are well-corroborated reports, but the live panel is the authoritative requirement.
Lower the target, increase Spawn Tier when the live upgrade justifies it, or grow Cash/sec before resuming the merge tree.
Compare your highest named unit and any secondary condition with the current panel; ignore an old video if the wording differs.
Rebuild the Cash loop first and choose a nearer named target instead of immediately recreating the former top unit.
The corroborated named order runs from Pistol through vehicles and aircraft to Elite Tank; the full unit page lists all 27 names.
Small Plane is the first reported aircraft at Index 16, after Mammoth Tank.
Supersonic Jet and Elite Tank are the two current corroborated community milestones. Verify both in the live panel.
Five higher numeric tiers are reported, but their current names and roles are not confirmed here.
