Evac Helicopter

The Evac Helicopter is perhaps the most important mercenary in Atom Zombie Smasher: it is the player's only method of rescuing civilians. It is the first unit the player recives in the game, and unlike other mercenaries, it does not go on away missions.

Functionality
The Evac Helicopter places a Landing Zone for arrival at the beginning of the rescue phase. Upon arrival, it uses a blowhorn to alert all civilians within a given radius to its location. It then lands in the city and picks up as many citizens as it can in ten seconds, up to its full load of thirty. The Evac Helicopter must leave its Landing Zone either ten seconds after its arrival, after it has reached a full load, or when a Zed enters the Landing Zone area. The player can also force the Evac Helicopter to leave by pressing a Force Evacuation button found on the mercenary ribbon. An Evac Helicopter's Landing Zone can be moved at any time during the rescue phase.

Experience & Upgrades
The Evac Helicopter gains experience points by rescusing civilians. Each civilian rescued gives the Evac Helicopter one experience point. After reaching a certain number of experience points, the Evac Helicopter can upgrade its Arrival Time and its Load Time.

Arrival Time
An Evac Helicopter's Arrival Time is the time it takes to land on the map between every pickup. When you first get the Evac Helicopter, its Arrival Time is 6 seconds. The Arrival Time decreases by 0.4 seconds upon every upgrade.

Load Time
An Evac Helicopter's Load Time is the time it takes to rescue an individual citizen. When you first get the Evac Helicopter, its Load Time is 0.25 seconds. The Load Time decreases by 0.02 seconds upon every upgrade.