as someone who is slowly but surely improving their pvp kd (i now solely play on my warlock in pvp): 1) go slow - rushing in and around will lead to you being overrun rather quickly 2) if you do end up on flashing red and there is an escape route, USE IT - better to go away and regen your heath than give them points 3) look at alternative routes round the back of the enemy, good chances doing this you will get a couple of kills in before you can quickly retreat, regen the health and go back around the other way 4) Radar - its your best friend 5) if you notice an enemy is running after you when you are making a retreat, go around a corner - your health should have regened by this point, turn to face the direction they are coming from and move in for the kill 6) Grenades - you have 2 options depending on how you want to play: 1 - use nades such as solar grenade, pulse etc to force your enemy to move out to you or towards team mates. 2 - if you choose to be ultra aggressive - use stickies such as tripmine, flux, fusion 'nades. Key to this is not to just through them so quickly as you want to be able to use them tactically to benefit your team or to get you the kill. 7) Headshots - although this i feel just slowly comes together over time 8) Maps - you just have to learn the hotspots i'm afraid - again this is just a matter of practise. 9) Blue/green equipment - dont be so quick to discount them e.g all the blue gauntlets tend to have increased reload speed of a specific weapon class - always have them in stock just to stick on for normal crucible (don't do this in Iron Banner). Use the armor that is going to benfit your build the most 10) (perhaps most important) Don't actively seek revenge kills, this will more often than not lead to you getting killed by the same person over and over, you will get frustrated and you will grow to dislike pvp. Just shrug it off and continue