My biggest piece of advice: Pick a weapon and stick with it. Play [i]your[/i] way. Understand the meta, but don't limit yourself to it. Make your way work. Find out what you need to do to make it work in less than optimal situations. Find out where it shines. Don't be the guy that changes stuff every time you die and blames the loadout. Instead, train your muscles and reactions to the point where that loadout is second nature. Once you do that, you'll be able to do the same with other loadouts faster and faster. This will be even faster if you stay away from things like near unlimited shatterdive builds and focus on gun oriented builds. That is what really helped me. With this I went from a 1.2 K/D in Trials in Season 12 to a 1.7 in Season 13 using Way of the Sharpshooter and Frostees. Put me in the top 1% for that season. And that was when it was very sweaty and stasis was just busted. Now I didn't really put that effort in after that. I did what I wanted to and I just wanted to go in to have some fun after work. But if I had continued that track I could be in an even better place I think.