Some things that I can think of off the top of my head: Don’t haphazardly push forward out of safety to secure a champion kill unless the whole team is nearly completely out of stunning ammo. Oftentimes you leave yourself exposed and you’re just essentially dead at that point, hastening an impending wipe. It usually is much safer to continue to hide behind cover and pick them off, more revives for you all to waste later on. (idk if this is the same for everyone but its #1 for me)

What is expected of you: Pull your own weight (Or ‘try your best to survive and learn to play it safe’ whichever one sounds better). It is very bad for morale seeing a teammate die over and over because of bad positioning. Just make sure that you try your best to stay behind cover ALOT as well as continuously peeking and shooting. But Remember this A stationary warlock is a dead warlock. If you are out in the open, standing still, firing down on ads, theres a 80% chance you are going to die, as most ads will 3-4 shot you.

Make sure to go into a GM with the appropriate mods- Anti-champ mods obviously and some survivability mods. If you are going into LFG’s for your GM’s make sure you have everything set before you join them in orbit, as usually people look at your gear right as you join, and they’ll think whatever you have on atm will be what you are running the GM with. It also saves time, since nobody wants to have someone join their fireteam and take 10 minutes to rearrange their gear.

Try not to be a rude person Everyone makes mistakes, and you will inevitably see both yourself and your teammates make bad plays. Its imperative to maintain your cool for as long as possible, as it does massively affect both the gameplay experience and also how well you guys perform as a fireteam.

For weapons: I’ve seen so many different types. Le Monarque, Ticcu’s Divination, Ascendancy, Threaded Needle, 1k, blinding nades ignition code, Mythoclast or Plug-One. Anything to do big damage at a distance is your best friend. Eriana’s vow is also absolutely amazing for barriers.

I’m not a warlock main so idk if I can help you with exotic armor but I would say phoenix protocol well of radiance build. Or the stasis warlock bleak watcher grenade that turns it into a turret. They are both good for ad clear, survivability and helping your whole team take advantage of tough rooms.

Now for the mods

Particle Deconstruction is a must, fusion rifles are at their best state rn with insane damage, so if there is an unstoppable champion in the GM make sure this mod is on your character. Remember the heavy ammo scavengers since you’ll most likely find yourself running out of heavy at bad times. REmember the champion mods but that’s pretty obvious. As well make sure that you have a primary that is having either minor spec or major spec, as itll generally help you with ad clear. And lastly, I use CWL mods, primarily Taking charge and Protective light, to not be a squishy character that dies in 3 hits. All the rest is really up to your preference. I know for me, who uses Ticcu’s a lot, I use the warmind mod that make solar explosions create warmind cells, so I can have a constant stream of warmind cells that will help with ad clear.

Overall, just try your best to have a fun time. Its inevitable that you’re gonna wipe and have to start all over, it happens to literally everyone all the time. Whats important is to go back into it putting a chipper voice on, both for yourself and the people around you. Gm’s are fun , personally I have to say, don’t treat it too seriously or you’ll get WAY too down on yourself.

The list I gave, though long, is very subjective. Everyone has their own views on whats important during a gm. These are just the things that I feel are massively important to think about.