Drone vs. Zombies

Please note that this is an experimental project.  The test version of the game contains incomplete levels, missing features or other flaws. The game is completely free and contains no advertising.

Nothing seemed to be able to disturb the established routine of former aviator Joe's life. 
The loss of his ability to walk was severely limiting his freedom of action. 
However, Joseph wasn't too worried about that.
Deep down, he had always dreamed of a quiet and measured existence. 
A comfortable country house in the north of sunny Australia, a decent pension, a game console and radio magazines. 
Nothing distracted him from his favorite pastimes, except for Nade, the grocery delivery man who delivered his groceries once a month. 
So he lived his life in abstraction from society, unaware of what was going on on the other side of the walls of his house.
- Damn Nader, was he out again? It had been three days since he was supposed to deliver my groceries. 
And his pension was delayed, which had never happened before.

A strange feeling came over Joe. For the first time in years he decided to fire up the dust-covered computer and visit the Internet.
The news he read threw the hardened pilot into shock.
Joe decides to get the full information about what's going on in the world from his former colleague, a good comrade and not the last man in the US Army.
- Hey, buddy! How was the service?
- What a bunch of people. Joe, didn't expect to hear from you, hey, buddy, have you been eaten by zombies yet?
- Not yet. They didn't, they just bit my legs off.
- You also have a good sense of humor, which is nice.
- You wouldn't believe it, I just found out about those zombies a few minutes ago.
- Why wouldn't I? Isn't that just like you, playing and building airplane models all day long? 
Oh, I wish I could do that. And I started traveling in my old age, now I'm sunbathing in Antarctica, for example, I never imagined that I would end up here. 
But let's cut to the chase, I don't have much time, and I see you don't really understand what's going on in the world. 
The state of affairs is this. For several weeks now, every continent has been infected with an unknown virus. 
About 70 percent of all people on the planet are infected with it; the rest have gathered in factions and are confronting the infected, we call them "zombies.
The epicenter of the infection is in southern Australia, so practically your entire continent is infected. 
I don't know how you miraculously ended up among the untouched, but the situation could change by the minute. 
The survivors of the U.S. military and civilian population were redeployed to Antarctica, including me.
Because of the low temperatures, the virus is not spreading on the mainland.
Our scientists are working hard to produce an antidote. The first experiments were successful, and the antidote synthesis process will take about 1 month, after which our pilots will spray this "medicine" over the cities.
The only thing is that everything is not so rosy. Only those infected for no more than 24 hours can be guaranteed to become normal people.
Those who stay in a zombie state for more than a day are unlikely to return to normal life, or simply die.
This is why Australia is far from being the first on the list to be sprayed, because there are almost no uninfected people left.
Such are the brutal realities. But there is no other choice, either act this way or humanity will disappear completely.
So, friend, all you have to do is not be mauled by zombies and not get infected by them. They, by the way, are especially active only at dusk.
The rest is wartime law, and I don't have to tell you. 
Also, I have a free drone in my possession, and if possible I will be able to send you the necessary things, including weapons.

That sounds reassuring, but how do I make it through these few weeks?
And then an unusual, but very good idea comes to his mind - to combine the old Colt and a modern quadcopter into one killing machine.