Emily

My advice:
-Be aggressive, like, ridiculously aggressive
-Parts sell for the same price you buy them for, so never be afraid to try new things
-Experiment and act on dumb ideas, some of my worst ideas ended up being the most effective
-Be broke at all times early on, you can swap parts when you load a checkpoint mid-mission, but having money in the bank does you no good there
-Just about anything can be viable, but sometimes a drastically different build will make your life much much easier
-I personally found mouse+keyboard preferable to a controller on PC
-Don't listen to anyone who says you need to play a specific way or do a specific thing to beat a boss (there's a few exceptions where there are specific mechanics you need to do)
-Reverse joint legs do more than their stats imply, they actually make you jump better and kind leap even you boost