"Don't be scared to take charge of a situation" <== This. It's remarkable how many times your entire team will stack up on a main route, get contacted and bogged down and NOT try to innovate, happy to just sit and duckshoot. So what it's your first time? Try tapping the rearguard on the shoulder, politely get a few people's attention and suggest "looks like that route will get us around this", it might go wrong or you might instigate the clutch play your team needed, or hell the regular you ask may simply tell you that way goes OOB or won't work. Nothing ventured, nothing gained.
This leads into my tip: I've noticed a lack of will to take the messier, muddier paths amongst my fellow airsofters. I love 'softing on shitty English days, cause I can usually count on the bulk of enemy players taking the 'easy' route and clumping up ripe for the ambush. IME the road less travelled is the road less bloodbathed, and sure you'll have to clean up your boots afterwards but not before you've cleaned up their whole team with a wicked flank attack!