The address he's provided in the note left for Cadence is a warehouse - a small but sturdy structure tucked between its larger cousins. Relatively far from downtown, the surroundings are devoid of life - no street people scavenging for scraps, no middle class representatives rushing home from work... even animal predators have moved elsewhere to seek for prey.
An ideal place for some suspicious activity. Like firing a gun you don't have papers for by a guy who doesn't legally exist.
And that's what Longstreet is doing: he doesn't wait for the newly arrived Daeva to start the excercise, it's just too tempting to put a few holes in the werewolves, ghosts, vampires and other monsters cut out from cardboard as a warm-up. Besides, it's far from certain she'll even come - she;s probably busy setting up Haven, getting the rules explained by the local Big Names, sightseeing... lots of things. But it'd be nice to have someone to talk to.
In the meantime, however, Longstreet aims his gun at a fake zombie and lets the bullet fly straight through its fake head.
Robert Longstreet 1 : 0 Cardboard Monsters.