Imperial Guard: First test model finished

I didn't really know how I wanted to paint these up, I had one idea though. I want them to fit together nicely when standing together with my Guardians of the Covenant but still look IG. So the palette I had to choose from pretty much is metallic, grey, black, red and some green. So this is what I came up with, tell me what you think.

It may not be the best model I have painted but I painted him up rather quickly just to see if I liked the colour scheme. And I think I do, may be needing some tweaks here and there though.

This is the last update (at least when it comes to painting and such) for at least a week as I'm travelling to Rhodes tonight. I may post some news updates if I feel I have the time but anyhow until then take care. 

Starting up an Imperial Guard army?!

New army again? 
I have two Space Marine armies in 40k, five big armies for Warhammer Fantasy, several Mordheim warbands, I got plenty of Bauhaus and Imperial for Warzone with a lot more incoming soon and I'm also going to get a lot of minis for Robotech: RPG Tactics. Enough miniatures for most people I think... well not for me.

I have wanted to do an IG army for many years, but it have just never happened. And I have long thought about painting them inspired by the dead Warzone game. Well Warzone is not as dead anymore but I saw this deal over at Tradera (Swedish eBay) which I just had to buy.

Quite a lot of stuff, and for a really good price. But the best part is.... they are converted already (well almost all of them) with helmets and backpacks from Imperial Regulars (the ones from Warzone 2 ed box) and it looks awesome!

The painting standard isn't exactly high but I would had re-painted them anyway, one of the Commissars looks decent though, but still needs to be re painted a little.

Painting theme?
Anyhow, for painting theme I want these to go along my Guardians of the Covenant. So main colours will be metallic, grey and black and some green and reds. So armour in metallic and black, uniforms in camo grey colours, weapons in green and red cap and markings. Think it will look really nice but I will do an test mini and see how it looks.

What kind of army should I do?
Well rules wise I'm total newbie when it comes to IG (or most 40k actually) and any help you can provide would be very helpful. What can I do with this and how should the squads look? Down below is the stuff I got:

6 Veteran Squads consisting of:

• 38 Guardsmen
• 5 Flamers
• 9 Grenade Launchers
• 2 Comms Specialists
• 6 Sergeants

• 2 Commissars
• 1 Cadian Command box which is unassembled, how should I build them up? 

• 1 Missile Launcher Weapons Team
• 1 Lascannon Weapons Team
• 1 Heavy Bolter Weapons Team
• 3 Autocannon Weapons Teams

I got some spare bits and what not do change stuff around but this are the models I have at the moment. First of all I will use them as an Ally to my Guardians of the Covenant so I must have that in mind when I build this army up. Also what should I buy next for this army? I understand most people like the Valkyries/Vendettas and I really like the look of them, should I buy any tank? or maybe Chimeras etc. All the tips I can get is most welcome.