Help wanted in converting Frozen Reaches to the BFK mass combat system

By alpha1983, in Rogue Trader Gamemasters

Hello everyone. As I know that my players will not be satisfied with a battle where they can´t move their troops and prepare some nasty surprises for the xenos, I´ve decided to port FR to a custom mod of the BFK mass combat system. But the bad news is that I´m stuck with the orks. So far I have this for the humans:

Name Size Str Power Type Quality Gear Special

House Troops Bat 25 7 Light Professional Good

Mustered Armsmen Bat 50 3 Light Conscript Poor

Storm Troopers Plat 5 12 Heavy Veteran Good

Levy Bat 50 7 Medium Volunteer Common

Armour Comp 200 10 Medium Volunteer Common -50Str if not fighting in offence

Artillery Comp 50 9 Medium Volunteer Common Double damage recibed if fighting close

M Enforcer Comp 10 5 Light Volunteer Common Double power in city & Actions +10 in city

M Suppresion Plat 5 10 Medium Professional Good Double power in city & Actions + 10 in city

Skitarii Comp 10 11 Heavy Professional Good

Trouble comes when I try to conver the ork troops, since there´s not an easy way to represent the troops that would be part of the different Strengths for each of the locations. From the descriptions of the different ork strengths I get that there will be a mix of infantry, armour & artillery among the attackers, I don´t know wich kind of mix would be OK.

I´m using some house rules that are very similar to the ones posted here:

https://docs.google.com/document/d/1ItRtCwMpMc3xkbzwcVQDuWEkZZ5oRIu96IQMhI8w9NI/edit?hl=en&authkey=CMTG0NEJ

Any ideas?