I'm just about done my Vanguard run on Insanity. My first and best character in Mass Effect 1 was a Vanguard, and my first character in Mass Effect 2 was that character imported. However I just didn't get the hang of it; I was pretty much doing everything wrong. I thought that Shockwave was the best ability evAr and that Charge was only for the suicidal. I thought that Shotguns sucked since I couldn't snipe with them anymore so I used the SMG almost exclusively. I must have died a hundred times, and this was on Veteran difficulty. Yeah, I was brutal. My formerly level 60 badass that ripped through ME1 insanity was getting filled in by anyone who looked at him sideways.
So after I finally finished the game with that character, I rolled a Soldier on Insanity and got through it pretty cleanly. I learned some more general tricks to utilize on future play-throughs and I got a better feel for the battlefields and the combat system. Now I've imported my Vanguard again (with the default face this time), set the difficulty to Insanity, and I've been enjoying almost every minute of it. There were a few parts that gave me trouble; Geth Colossus, Zaeed's mission's final fight, and the Collector platforms (damn Charge won't go through!) come to mind. These are the exception. Most fights I just charge in with my Evi or Scimitar and cut the baddies a new one. It's aggressive, it's risky, and it's the most fun I've ever had playing either of the Mass Effect games. There's nothing more rewarding than winning a large scale battle by flying all over the map and blowing enemies away -- all while in the red. I love it.
Here's my build:
10 Inferno Ammo
10 Squad Cryo Ammo (damnit Garrus stop switching to AP!)
10 Heavy Charge
10 Destroyer (contemplating a switch to Champion, not really sure yet)
10 Area Reave
1 Shockwave (for spanking Husks)
I almost always take Garrus and Miranda along with me. Garrus has been my favourite character from the moment I met him, and he continues his badassery throughout ME2. He gives me a few laughs here and there, and just feels like Shepard's "best friend". You've been through hell and back together; why not make it twice? Miranda is... well, hot. And her Warp/Overload combination makes her a great utility teammate; her squad health bonus helps out too. Also, I'm weird in that I absolutely HAVE to bring my romantic interest along with me otherwise it takes away from the RPG atmosphere. Plus her little conflict with Cerberus at the end of the game is a nice touch .
At the moment I'm just using the generic N7 armor. I haven't really fiddled around with various armor combinations yet because I'm not sure what works best. Anyone have any advice? On a side note, I'll never wear a helmet. I hate that the helmets don't come off during conversations, I just look like a Power Ranger during most convos.
Right now I just finished everyone's Loyalty missions, Legion's excluded. I'm going to mop up the rest of the star clusters and then I'll jump into the IFF mission. I'll probably beat the game by tomorrow.
I'd just like to let you guys know that I decided to give my Vanguard another shot because of this thread. All of the insightful advice, crazy helpful videos, and intelligent discussion in this thread got me re-energized for another crack at the game with my favourite class. Now I'm having tons of fun charging around the battlefield and helping to correct people who think that a Vanguard is gimped on Insanity.
You guys are awesome at what you do, keep up the great work.