Weapon storage house?

Ruin Section area-2,

For a moment, everyone thought it was an illusion. The members immediately looked at their leader for answers.

Ricardo Compton feels something amiss. Looking at the empty hall, he thinks there is something more to it. Because this building is an unmarked one. Which means no one had explored it before. 

"Alright, everyone. Go and check the rooms one by one," Ricardo Compton instructed his subordinates.

Hearing that, Eric Lloyd and others swiftly acted. Kara Robles and Terrell Boyd went to inspect adjacent rooms. On the other hand, Eric and Garret Marsh looked at each other.

There is a mutual understanding between them. Both of them decided to check other rooms.

Finally, Ricardo Compton was left alone in the hall. He turned around and began to look for a secret compartment. Because he believes it's impossible for such a massive building to be hollowed out. 

There must be some secrets in it.