Your main squad has four unit slots. But in case any of your heroes or automatons are defeated, you can call in reinforcements using the new mechanic - "Deployment". You can summon a unit from zeppelin to each of the free slots and continue fighting with new units, giving you a significant advantage in combat. You can choose not only a specific unit, but also a landing site for tactical maneuvers.
In the future we will show you more details. So stay tuned. You can join on Discord for getting more involved or follow us in any comfortable sotial net as twitter, facebook or reddit. And anytime we are waiting you on our kickstarter page.