Looting is one of the most important tasks to do in Dead Zone, here is a basic guide to looting.
If you see a Golden Question Mark, hold the "E" key whilst standing near it to start looting the object.
Press "E" or "R" to either accept or reject the loot you have just found.
Doesn't matter where you loot, you can loot almost anything, anywhere....as of now.
Although, that doesn't mean every building is equal, some buildings have more loot spots that are closer together. A "Loot Map" will be coming soon so survivors can decide where to go for a loot run.