[400 cp] please help!!

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OK so i just got confirmation of the format for my local conflict tournament.

doubles; 400pts each using the combat patrol rules; playing five games

a big change from last year (straight 1k; three games) and i'm having trouble with force selection. IG seem like a good idea (numbers and hvy weapons) teamed with space wolves(close combat goodness). hence i am posting this on both SM and IG forums.(if this is wrong some one tell me and i'll punish myself severly..... just give me time to find the flesh eating earwig...)

and was planing along these lines:

Guard: junior officer, morter team

2x inf sqds (1x missle launcher, 1x hvy bolter)

senital; autocannon

6x stromtrooper; plasma gun

this comes to about 315pts so any ideas as to what else? i'd love to take a fire support sqd but can't without a command platoon or a hvy weapon platoon hq, right? chimera seems to eat too many pionts... ideally i want more infantry based fire power so any ideas as to how to squeeze in as many hvy weapons as possible into remaining pionts?

this to be teamed with;

Space wolves: 8x grey hunters; 1x plasma, 1x power sword, 1x power fist

1x land speeder tornado

3x blood claws bikers; 1x power sword

4x wolf scouts; 1x power sword

plan to form fire base with imperial guard, use the sentinal to flank, infiltrate the storm troopers attack with the bikes and grey hunters while engaging oppnents rear with the wolf scouts(ala 'operating behind enamy lines')

so will it work?

and if anyone can see anything that doesn't fit the combat patrol rules can they let me know as they seem a little vague to me . for example do we need to adhere to the 'retinues' rule for space wolves? or does the combat patrol statement that i 'may' but don't have take a hq take precidence?

also any advice on the best use of docterines to get around the combat patrols min requirerments would be appretiated.

thanks in advance.