Know the mission before you fly
Zombie Air Force is a Roblox co-op horde-clearing game. Its public listing frames the goal as taking an aircraft into a zombie front, supporting allies, and pushing the frontline. Treat the in-game briefing as the authority for the current mission; the public page does not publish a full mission-by-mission walkthrough.
The listing names rockets, chain guns, and airstrikes, plus defenses that can be dropped with allies. It also mentions large Behemoths. Exact aircraft handling, enemy health, and mission requirements are not documented in the listing, so this guide leaves those values open.
Build a first-run plan
Start with the objective and interface shown in your own session. Identify the current target, the available weapon or defense choices, and any displayed task counters before committing resources. A creator video can help you recognize the interface, but patches may change it.
Credits are used to unlock a catalog described as containing more than 180 upgrades. The game page does not give a complete price table or a universal best build. Read each upgrade description in-game and spend toward a role you actually use. Team up when possible: the official description specifically presents allies and co-op as part of the experience.