Our boys go to the regular scout camp so it's pretty much with other scouts that are non-LDS.
I do think your scout leader should be able to give you detailed accounts though. Do they have a FB page? You could look up photo albums and stuff and see if there are any from previous scouting campouts.
IF they were to do anything "religious" at scout camp I'd figure it to be writing in a journal about life things...maybe they'd give them a topic and then the kiddo would write whatever, they'll probably be expected to be reverent during morning and evening, and mealtime, prayers, and perhaps but probably not required, they'd have some time for scripture study. If you're not religious then you could discuss this with the scout leader and make a decision to not allow them to participate in the scripture part or you could ask them if the church library has any scriptures the boys can take with them.
I truly don't know what they'd be required to do that isn't in line with your choices. The church isn't dogmatic about everyone participating in things if the parents just want them to come along.
My girl went to girl's camp one time, one time only. There were bugs at camp. It was hot at camp. They had weird food like salads and stuff at camp. She had scriptures with her and they actually thought she'd take them out and read them! Egad!
She wasn't forced to do anything she didn't want to. She had a good time but camping is NOT her forte. She's an indoor girl (like me) and an Introvert recluse (like my husband).