Instead of new weapons, strategy, buildings, and others.
This one involves in game play.
I kept hearing that a lot of people crashes during a mission, which makes them lose everything they found and wait for hours for literally NOTHING, and also come home with an injury that us players hate...
So I came up with this:
When a player goes to an area, the game will download to the computer all the data, the zombies, the areas, the background, the loot, and everything, which makes the game rely less on the internet connection and the zombies ready to go even a storm just happened.
For example: When a player goes to super market, the game will download the loot in the containers, the zombies that'll show up, the survivors, and the area itself. Since all the data is stored on the computer and saved, it would be impossible to lose connection during mission. Because everything on the screen is now on the computer, not on the internet. When the player lost connection, the chat may be inaccessible, but the rest is still there running.
Yes, the loading time would take forever to them, but they'll still have everything they found in a mission and they'll never wait for nothing and come home with an injury for no reason anymore.
It may sound dumb but...
If possible, please do this. And the players with slow connection have nothing to fear anymore.