i am looking into entering the GW warhammer 40k doubles tournament 2012. yes i know, its a long way away, but cashflow is a bit of a problem so we need this long to build up our armies. also, we would like to do a fir amount of playtesting t really get our army to its best. this is our first draft and we are just looking for any general feedback before we star playtesting.

Player 1
HQ - CCS, in chimera, w/ 4x melta 145
elite - guardsmen marbo x
troop - vets, in chimera w/ 3x melta, demolitions 195
troop - vets, in chimera w/ 3x melta, demolitions 195
fast attack - 3x scout sentinals, autocannons 120
heavy - LRBT (no upgrades) x

total - 870


player 2
HQ - CCS, in chimera, w/ 4x melta 145
troop - vets, in chimera w/ 3x melta, demolitions 195
troop - vets, in chimera w/ 3x melta, demolitions 195
heavy - LRBT w/ lascannon 165
heavy - LRBT w/lascannon 165

total - 865

for those of you who don/t know the doubles event uses slightly different rules.
two players forces make up an army.
each force is 875 points
unused points may not be transferred
an army must have one each of elite, FA and HS before it has any more of any choice. )i.e. we have marbo and the sentinals, so we can have three russes)
each force must have a HQ and a troop
a total of four troops may be added to the army (not force!), on top of the two necessary.

also, they use different scenarios. below you can see the 2011 rules (quoted here) along with the scenarios from 2011 (which i dont know if they will stay the same).
any advice is welcomed.

http://www.games-workshop.com/MEDIA_..._Sept_2011.pdf
http://www.games-workshop.com/MEDIA_..._Scenarios.pdf
http://www.games-workshop.com/MEDIA_...aq_24.8.11.pdf