How can he see the scope? The man is a good sniper so unless shiba used to be a scout or sniper there is no way I can think of that would allow him to know he's hidden besides Rusty being present.
If you could change that, that would be awesome. If not, I can still run with it.
@FallenTrinity Game designer, while he had no actual experience with being a Scout he had to have experience designing how a shot uses a scope. Like call of duty. Although if you want me to I can change it
So like I said, if he was/is a scout/sniper you wouldn't really be able to see him. Plus he right now is in the spot that conceals himself from the sun (eliminating the chance for a glare to reflect off his scope and is higher up from the rest of the group. Remember he got there way before the group to set up so he has the advantage however before we leave maybe Shiba could see the silhouette of someone move from one of the higher decks?