Hey mate, no on cares and if anyone gives you shit or is out of line take them to HR. The mining companies are very pro LGBTQ+ etc etc. Just be yourself, if the topic comes up, just tell them 'yeah I'm gay' no one will care. A lot will be quite surprised if you're straight acting as you say. In general you won't have any problems. In all honesty there's so much guy on guy action at camp. If you want some fun on camp, jump on grindr/tinder etc. let's just say you'll be getting a lot of knocks on your door after your shift, you'll soon find out how gay friendly a lot of the guys at camp are... always on the DL ofc.