Talk:F-15 S/MTD -Leo-/@comment-26928960-20150828221629/@comment-25045164-20150902102035

Well, it doesn't necessarily kill the progress but to go for lv14 it takes loads of credits from other things you could've unlocked. Since updates would just keep adding things to the tree, keeping it unlocked from every corner really helps. Plus, multiroles have a lot of part slots. Take advantage of that; start by unlocking as many parts as possible so you have a variety of customization to choose from for your Leo. You might want to get it to lv7, though.

You know what? I've only upgraded my Jolly Roger Tomcat to Lv10 for the ongoing tournament. Other than that, I've never upgraded all of my main sets past Lv7.