As many of us have noticed Astra militarum is a hard nut to crack, especially when they can just spam bodies. Best way to deal with them is of course by not having to kill them all, but suppose you have to, which is the most efficient unit(s) to do it?
I'm going to try to run some numbers, but please double check them because I tend to make errors a bit to often. Also numbers isn't everything.
Some of the top contenders I think will be:
10x Gurdians w shuriken cannon (or scatter laser?)
8x Storm guardians w 2x flamers
5x Swooping hawks w hawks talon
5x Scytheguards
3x Dark reapers w tempest launcher
1x Support weapon w shadow weaver
5x Warp Spiders w dual deathspinners
5x Striking scorpions (or Howling banshees?)
Points cost of each unit will of course also be included, not just pure killyness but killiness/point cost.
Guardians w shuriken cannon [95p] :
8 catapults: 1,78 (rends) + 3,56 = 5,33
1 cannon: 0,33 (rends) + 0,89 = 1,22
1 plasma grenade = 1,30 (assuming 3,5 shots)
Total: 7,85 kills
(1 scatter: 1,48)
Scatter laser is better giving us a total of 8,11 Kills from shooting
in Melee:
10 guardians= 2,22
1 platform=0,056
Total: 2,28 Kills
Total kills/point: (8,11 + 2,28) /95 = 0,11 k/p
Storm Guardians w two flamers [74p] :
5 pistols: 0,56 (rends) + 1,11 = 1,67
2 flamers = 3,11 (assuming 3,5 shots)
1 plasma grenade = 1,30 (assuming 3,5 shots)
Total: 6,08 kills
in Melee:
6 chainswords= 2,67
2 fists= 0,44
Total: 3,11 Kills
Total kills/point: (6,08 + 3,11)/74 = 0,12 k/p
I will try to hammer the other units later..
Edit:
5x Swooping Hawks w Hawks talon [68p] :
4 lasblasters= 3,56
1 Hawks talon= 1,19
5 grenades= 0,83
Total: 5,57 kills
in Melee:
6 fists= 1,33
Total: 1,33 Kills
Total kills/point: (5,57 + 1,33)/68 = 0,10 k/p
5x Scytheguards [225p]:
Scythes = 8,33 (assuming 2 shots each)
Total: 8,33 Kills
in Melee:
fists= 1,85 Kills
Total kills/point: (8,33 + 1,85)/225 = 0,05 k/p
3x Dark Reapers w tempest launcher [86p]:
2 sunburst = 2,59 (assuming 3,5 shots each)
tempest = 3,63
Total: 6,22 Kills
in Melee:
4 fists= 0,89 Kills
Total kills/point: (6,22 + 0,89)/86 = 0,08 k/p
Shadow weaver [55p]:
weaver = 0,39 (rends) + 1,04 = 1,43
Total: 1,43 Kills
in Melee:
2 fists= 0,44 Kills
Total kills/point: (1,43 + 0,44)/55 = 0,03 k/p
5x Warp Spider w dual deathspinner [98p]
6 spinners = 1,33(rends) + 3,56 = 4,89
Total: 4,89 Kills
in Melee:
6 fists= 1,33 Kills
Total kills/point: (4,89 + 1,33)/98 = 0,06 k/p
Edit2:
5x Striking Scorpions [70p]
4 pistols: 0,44 (rends) + 0,89 = 1,33
1 plasma grenade = 1,30 (assuming 3,5 shots)
Total: 2,63 Kills
in Melee:
Mandiblasters = 0,83
8 S.chainswords = 2,37
3,5 Exarch: 1,04
Total: 4,24 Kills
Total kills/point: (2,63 + 4,24)/70 = 0,10 k/p
(with scorpions claw: +0,33 shooting +0,90 Melee -> (2,96 + 5,14)/82 = 0,10)
Claw is actually slightly better, even if the rounded numbers don't show it.
5x Howling Banshees w mirror swords[65p]
4 pistols: 0,44 (rends) + 0,89 = 1,33
Total: 1,33 Kills
in Melee:
8 powerswords = 2,67
mirrors = 1,33
Total: 4 Kills
Total kills/point: (1,33 + 4)/65 = 0,08 k/p
Edit3:
Forgot the mandiblasters, now scorpions are on par with the hawks, they might even beat them if the target is in cover...
5x Striking Scorpions w claw against GEQ's in cover[82p]
5 pistols: 0,69 (rends) + 1,04 = 1,73
1 plasma grenade = 1,30 (assuming 3,5 shots)
Total: 3,03 Kills
in Melee:
Mandiblasters = 0,83
8 S.chainswords = 2,96
3,5 Exarch: 2,43
Total: 6,22 Kills
Total kills/point: (3,03 + 6,22)/82 = 0,11 k/p