Thanks, the biggest thing I've learned is to sidearm a plasma pistol in Elite heavy areas. I'm gonna take on ONI in an attempt to gain the 4000 Cr, and thank, but I've already used that exploit to it's maximum potential. So, yea I'll so what you say and take it slow.
I also got the Legendary Edition today...the wife gave me some looks...anyway, In the cave in mission 9 on Heroic I found the way to make my run on Legendary really easy. By jumping behind the rocks next to turret c you can manuever into a position that allows your team to take out all of the opposition for you while only being a short run from the door. Though if you want to be part of the fray you can climb a bit and snipe enemies with your DMR without repercussion because they won't fight back.
EDIT: As of now I am about 3/4 of the way done with sword base, I've just returned and I know that I can finish from here as long as the hunters don't give me too much trouble.