This is my first post here at Tault so please excuse me if this sounds lame and/or stupid.  I've done my fair share of gaming in CoH and found this build during my travels.
This is why this build is so awesome: One day a long time ago (well, a month ago), I was playing my Warshade and was about to finish a task force mission with my buddies.  Our group consisted of me, 2 scrappers, a controller, and a......I think a fire tanker.  Anyway we've been doing this mission for a least a week now, on and off and we were finally going to kill the archvillian.  I can not tell you how many times we died trying to kill this guy.  We were so frustrated, we decided to start over but with more people.  We picked up a tanker (invuln/super str) and an empath defender.  We thought we were ready.  So after a full day (12 hours) of fighting, we got back to the archvillian.  My buds and I explained to our new friends that we had not been able to take this guy.  So the tanker, being the awesome person he was, ran up to the archvillian and started the get wailed on.  Now, here's the cool part.  We watched his health the whole time, it did not go down.  He was standing toe-to-toe with this Purple archvillian and he could take the hits.  The defender didn't even heal him.  He healed the people who were getting hit with the AoEs.  So, being the dedicated healer I was, I made an Invuln/Super Str and he is litterally invulnrable.  He just can't take Psonic dmg (stupid psonic dmg.......).  If you want a build that can take the damge forever and feel like your invulrable, this is for you.
My build that I have found is more a solo build.  This is word for word exactly how I did it.  So, here it is.
(colors etc. are brought to you by CoH Character Planner by Joe Chott)
First Build - More Solo then Group
Archetype: Tanker
Primary Powers - Ranged : Invulnerability
Secondary Powers - Support : Super Strength
Level 01 : Jab
     Damage ( 01 )
Level 01 : Temp Invulnerability
     Damage Resistance ( 01 )
Level 02 : Punch
     Damage ( 02 )
     Damage ( 3 )
     Damage ( 3 )
     Damage ( 5 )
     Damage ( 7 )
Level 04 : Dull Pain
     Recharge Reduction ( 04 )
     Recharge Reduction ( 5 )
     Recharge Reduction ( 19 )
     Recharge Reduction ( 21 )
     Recharge Reduction ( 31 )
Level 06 : Hasten
     Recharge Reduction ( 06 )
     Recharge Reduction ( 7 )
     Recharge Reduction ( 15 )
     Recharge Reduction ( 17 )
     Recharge Reduction ( 19 )
     Recharge Reduction ( 21 )
Level 08 : Unyielding
     Damage Resistance ( 08 )
     Damage Resistance ( 9 )
     Damage Resistance ( 9 )
     Damage Resistance ( 11 )
     Damage Resistance ( 13 )
     Damage Resistance ( 13 )
Level 10 : Haymaker
     Damage ( 10 )
     Damage ( 11 )
     Damage ( 17 )
     Damage ( 23 )
     Damage ( 50 )
     Damage ( 50 )
Level 12 : Resist Elements
     Damage Resistance ( 12 )
     Damage Resistance ( 15 )
     Damage Resistance ( 33 )
     Damage Resistance ( 34 )
     Damage Resistance ( 36 )
     Damage Resistance ( 37 )
Level 14 : Super Speed
     Run Speed ( 14 )
Level 16 : Swift
     Run Speed ( 16 )
Level 18 : Invincibility
     To Hit Buff ( 18 )
     To Hit Buff ( 46 )
     To Hit Buff ( 46 )
     To Hit Buff ( 50 )
Level 20 : Health
     Healing ( 20 )
Level 22 : Stamina
     Endurance Recovery ( 22 )
     Endurance Recovery ( 23 )
     Endurance Recovery ( 27 )
     Endurance Recovery ( 27 )
     Endurance Recovery ( 29 )
     Endurance Recovery ( 29 )
Level 24 : Knockout Blow
     Endurance Reduction ( 24 )
     Damage ( 25 )
     Damage ( 25 )
     Damage ( 31 )
     Damage ( 33 )
     Damage ( 34 )
Level 26 : Resist Energies
     Damage Resistance ( 26 )
     Damage Resistance ( 31 )
     Damage Resistance ( 33 )
     Damage Resistance ( 34 )
     Damage Resistance ( 36 )
     Damage Resistance ( 37 )
Level 28 : Rage
     Recharge Reduction ( 28 )
Level 30 : Tough Hide
     Defense Buff ( 30 )
     Defense Buff ( 45 )
     Defense Buff ( 45 )
     Defense Buff ( 46 )
     Defense Buff ( 48 )
     Defense Buff ( 48 )
Level 32 : Unstoppable
     Recharge Reduction ( 32 )
     Recharge Reduction ( 36 )
     Recharge Reduction ( 37 )
     Recharge Reduction ( 40 )
     Recharge Reduction ( 43 )
     Damage Resistance ( 45 )
Level 35 : Taunt
     Taunt Duration ( 35 )
Level 38 : Foot Stomp
     Recharge Reduction ( 38 )
     Damage ( 39 )
     Damage ( 39 )
     Damage ( 39 )
     Damage ( 40 )
     Damage ( 40 )
Level 41 : Conserve Power
     Recharge Reduction ( 41 )
     Recharge Reduction ( 42 )
     Recharge Reduction ( 42 )
     Recharge Reduction ( 42 )
     Recharge Reduction ( 43 )
     Recharge Reduction ( 43 )
Level 44 : Focused Accuracy
     To Hit Buff ( 44 )
Level 47 : Laser Beam Eyes
     Damage ( 47 )
     Damage ( 48 )
Level 49 : Resist Physical Damage
     Damage Resistance ( 49 )
-------------------------------------------
Level 01 : Brawl
     Accuracy ( 01 )
Level 01 : Sprint
     Run Speed ( 01 )
Level 02 : Rest
     Recharge Reduction ( 02 )
There it is.  I would strongly ask for people to comment/flame/critizes/praise this build because I need to know what to do better.
Well, thats it for now.  I'm still looking at a more group oriented build.  I'll update this when I find it   

  Have fun!!