I'm trying to make some Astorath list that both use his FOC and army influencing attributes (unlocking 0+ DC and 1-3 Red thirst roll) and maximizing those benefits in a jump list, while still being a heavy hitting in this mech driven world.

HQ
Astorath - 220
Honor Guard - JP 165 (this is just an escort for FnP to the RAS)

Elites:
Chappie w/ JP and Pfist - 140

Troops:
3x RAS, 1x pfist, 2x Melta 235pt each
DC1 with 4x DC + JP, 1Pfist, Lemertes - 315
DC2 w/ 4x DC + JP - 140
DC3 w/ 4x DC +JP, 1 Pfist - 165

Each DC gets a Chappie or equivelent and I split them up in small groups to reduce the chances of all of them flying off after empty vehicles and such. I'm hoping to use the Regular Assault Squads as guides for the DC - melta vehicles and dump the dudes out so that DC can come flying in to kill things. I really like the Chappie + DC combo and have found that Lemertes and Astorath are beasts and red thirsting RAS squads in mass are really amazing.

My concerns are low model count for an all dude list (50) and that if I don't go second (making my opponent lose 2 turns of shooting) that I will die quickly to <ap4 fire.

Should I just drop a RAS squad and go full tilt DC and fill up thier ranks better?