The suited man stopped at the end of the stairs, which had a door between them and the rooftop. The green-suited man speaking to the captain earlier looked at the rest of the group and gave a signal. They immediately understood and kicked the door simultaneously, pointing the gun ahead of them, ready to kill anything that moves.
There was no one in sight on the rooftop. "Sir, the sniper is missing", the green-suited man said, touching his earpiece. "What do you mean he's not there, sweep the rooftop!" The captain said with anger, causing the green-suited man to wince in pain as a result of the high pitch the earpiece produced.
"Alright sir", he obliged and signaled to the group to spread out. The rooftop wasn't too big, so they were able to search it fairly quickly. They regrouped back and informed the green-suited man they saw no one.