Twix let out an explosive burst of breath as he pulled himself over the ledge and onto the roof of the petrol station, he'd climbed up a solidly attached drainpipe on the outside of the building. 

He looked about taking stock of the bare roof before crawling over to the ledge facing the street, once there he pulled his sniper off his back and set it up, He pulled an extra 2 magazines out of his backpack and placed them on the roof next to him, then did the same with his pistols.

Before him was the station, between him and the station perhaps 50 flood combat forms roamed the street. 
From this vantage point he could see into the station through the open doors and into the main entrance, the glass exterior helped allowing him a much bigger coverage zone than he might otherwise have hoped for.

He scanned the street looking for anything that would help him cross but as he was about to give that up for bust something changed, a wave seemed to pass through the flood and suddenly they were all ambling off up the street, he stayed silent and watched as soon the street became deserted.

He turned on his microphone;
"Bennewitz, This is Private Mile, I have sights on the main entrance and can provide cover if you'd care to join me, over"