While waiting for Alex to scope out the entrance Diego turns to the others. "Once down there, we need to stay together. Remember, do not kill our target.", begins Diego. "If needed, are the two of you ready kill? We don't know what awaits us and it may get violent. I need to know I can count on you two.", asks Diego looking between Levi and Peter. He didn't have any doubts about Hitori or Alex. Ren, while uncertain on her trustability, could also hold her own it seemed. He had only seen peter in action once and he didn't fire a shot. Levi was an unknown in combat for Diego, but based on the mans actions so far it was tough to tell.
While waiting for a response he took a peek down the drop with his scope in thermal and low light mode. If he was going to go down there, he wanted to get a good idea if there was any sensors or traps.
Perception 25 mainly to see if any traps, sensors, etc. The thermal scope view is to see if there is any hint of warm things.