If you need help with your crucible game, check out True Vanguard on YouTube. Seriously. I used to get my ass kicked every single game until recently, I've been watching and studying his gameplay as well as his tutorials. Since then (like, the last two or three weeks or so) unless I'm messing around for fun or get matched with crazy good people, I've been topping the Rumble list on a regular basis with 1.5, 2+, and 3+ KDR games, and even three 5+ KDR games! Even earned my Chaperone and got three Phantom medals legit, which I thought was a good accomplishment for me lol. Start by playing Rumble or Skirmish. 6v6 really isn't the best place to develop 1v1 skill, since you don't really get into a 1-on-1 very often. One of the best things you can do is play a couple of games, record that gameplay and watch it. Notice what you're doing wrong, and think strategically how you could have gone about this situation any better. If you don't have a capture card, I know PS4 can record 15 minutes of play, and the Xbox I think is 5 minutes(?). But just attack certain situations with your head screwed on straight, so to speak. Don't charge headlong into 1v2 or more, try to make all your encounters 1v1 by cutting off other opponents' sight lines to you and pulling opponents into choke points. Don't challenge the shotgun in it's own environment if you don't have a shotgun. Don't challenge the sniper lane if you don't have a long range weapon. You want to play to your strengths, not everyone else's. Also, stay alive as much as possible. If an encounter goes south and you're given the opportunity to run away, do it. There will be another fight, another opportunity for a kill, but you want to try and deny the kill for whomever has the advantage on you. Maybe in fleeing you can get them to chase you, which instantly puts you at the advantage because you then can decide when you want to fight them again by pulling them into whatever room you feel comfortable engaging them in. I hope this helps. I obviously don't claim to know everything, and you'll get far more tips and strats from TV's channel, but for real go check him out. It will take some practice, but it'll also make a night and day difference.