http://natfka.blogspot.com/2011/12/natfkas-imperial-guard-list.html
Veteran Squads.
There are four of them, two squads with Plasma Guns, and two squads with Meltas. The threat range from each is 21" for meltas and 27" for plasmas. By threat range, I mean the vehicle moves 12", they deploy almost 3", and then rapid fire the plasmas 12"/ shoot the meltas at double pen range 6". This means they literally can reach out and touch someone wherever needed. These tanks are deployed in the front of your lines, and move forward popping smoke to clutter up the midfield first turn unless someone is there and you need something to die. These units are very good at getting rid of anything that comes through your midfield, and afterwards moving to gather objectives. They hold a lot of firepower.
The Golden Rule with Veterans Don't Get Out of the "Fing" vehicle
Obviously I break this rule all the time, however I go into the game remembering this rule and only getting my vets out onto the tabletop when needed. With 5 guys being able to fire out of the top hatch, its important not to just throw them away. When vets get out of their vehicle, I expect them to die (doesn't always happen, but if you go in expecting that it will mean you throw them away a lot less). If you can stay inside your vehicle and maintain the firepower, do so. Only get out when you are going to destroy something, or something desperately needs to go down.
Platoon Command
This one is just fun. Every chimera comes with a Heavy Flamer in the hull, so when Platoon Command starts flaming away , its 4 flamers and a lot of wounds. Amazingly enough I have even taken down a 5 man Plague Marine squad with these guys. They are mobile, and are yet another objective grabber in a chimera to plus up that soon to be mess in the midfield
Psyker Battle Squads
I just can't leave home without these. Very mobile and scary units. These guys work from the back of the vets. Their chimera can move 12" and still use their ability of weaken resolve 36" across the battlefield. (its not a shooting attack). These guys increase the efficiency of your entire army. A scary group of paladins in midfield? Lower their leadership and then kill 25% and watch them run the rest of the game. (I've done this several times in the last few months). Need to get rid of Nob Bikers or Longfangs? Same thing. With this unit, anyone that leaves a ground unit near a board edge loses it. So what happens if the army you are facing is fearless? They have a shooting attack, but no need to go into it, it is second rate, but is usable. Oh yea, did I mention they also come in chimeras.... More plugging up the midfield.
Vendettas
These have a special place during my games, which is usually as a wreck round 1 or 2. What they do though is give something for my opponent to kill that I know is going to go down, and some pregame flexibility. While this list does not use demolitions for my vets, I often do have a unit with that ability. Scout move the vendettas forward. Round 1 Deploy 3" move 6" and assault 6" to blow up armour with 10 melta bombs. With this list however, points were at a premium, and two veteran squads are loaded with meltas and two with plasmas. If you use a list like this, but trim 30 or 60 points, this is where I would first put them (with the melta gun veterans). This allows you the flexibility to strike forward into the enemy fast with 1 or 2 squads, destroying armour in its track often round 1 kills. The vendettas then back up 6" and fire everything until destroyed or shaken (in which they move flat out for a better field advantage). Once again these will be creating even more of a mess midfield.
Often times in games with this list, with so much going on with so much firepower, the enemy must work hard at getting rid of just too much armour. My midfield tanks are coming across the field laying down multi-laser fire, and transporting a deadly group of guardsmen inside. Most games, the midfield is where I am concentrating the game. The rest is just fire support.
With this many tanks, you are taking up a lot of space. Practice a few times moving across the field, so that you do not get in your own way. For the most part its 2 vendettas sitting just past the midfield mark, with 5 troop carrying chimeras coming up behind them, and 2 psyker squads moving behind them.