Well, given the length of rank ups required to go from m1 to m2 smoky and titan, it makes sense (at least for me) to fully upgrade both. MU keeps both competitive as others start to show up with M2's. While I'll end up spending more on M2 than if I waited for the correct rank, it offers a goal (full MU)which keeps me interested.

I'm playing isida m2 and hornet m2. I have thunder m1. For the upcoming sale I'm thinking: A: upgrade thunder and acquire rustle (or upgrade hunter to m2) B: acquire m2 freeze and rustle C: other guns paints? i've never been a rail guy. I spend most of my time between defending zones and about one third attacking. Thoughts?