Are you good at vertix.io? Try this game. This is very similar in style, only you can find better weapons around the map, and the maps are a bit bigger.
You spawn in a corner of the map, and try to scavenge for better weapons to fight with. Everyone starts with a simple assault rifle which has unlimited ammo, but it’s a bit weak… so it is best to find ammo for other weapons. Each of the weapons is different, and they are good for different situations. Of course you will not always have ammo for all of the weapons, so you will have to figure out which are the best for yourself!