Warhammer 40K Lite?

[Rolando]

If you use the miniatures rules as statistic probability of usefulness of equipment, flack protect from most common attacks 1/3th of the time while power armor do it 2/3th of the time. And considering flack armor don't cover much of the body it is reasonable to assume most of the failed armor saves from flack protected models is because they are hit in places they don't have any armor, meanwhile when powered armored models fail an armor save is because it was hit in a vulnerable place (if hit by a hand held weapons like a lasgun or boltgun).

So flack armor is not necessarily that thin, it just doesn't cover much of the body. Even the common helmets protect only the head, not the face nor the neck.

So, flack may be actually 20 or 35 DR, like current assault vests with ceramic plates, and power armor may be around 35 to 40 DR. Give weapons regular damage (2 to 6 dice) but good armor divisors and you will be in a good place.

[naloth]

Originally Posted by Rolando

If you use the miniatures rules as statistic probability of usefulness of equipment, flack protect from most common attacks 1/3th of the time while power armor do it 2/3th of the time.

That's not quite accurate. On paper, flak may have a 1/3 chance, but in practice many (if not most) attacks have either an AP or armor modifiers.

Other than Catachan jungle fighters my IG troops are all covered head to toe (though what's clothing vs armor is questionable) while any Space Marine with rank seems to have long lost his helmet.

[Rolando]

Originally Posted by naloth

That's not quite accurate. On paper, flak may have a 1/3 chance, but in practice many (if not most) attacks have either an AP or armor modifiers.

Other than Catachan jungle fighters my IG troops are all covered head to toe (though what's clothing vs armor is questionable) while any Space Marine with rank seems to have long lost his helmet.

most common weapons don't, only ap weapons that while common in a wargaming table are quite uncommon in the fluff of the game.

treat flack as 20 to 35 and make meltas, bolters, etc have high armor divisor and you will be in the right place...meltas, for example should be armor divisor of at least 10. Bolters are described as shaped charge mini missiles, so they will probably be 10 divisor too, but much less damage, like a gyroc round from ultra tech.

[naloth]

Originally Posted by Rolando

most common weapons don't, only ap weapons that while common in a wargaming table are quite uncommon in the fluff of the game.

treat flack as 20 to 35 and make meltas, bolters, etc have high armor divisor and you will be in the right place...meltas, for example should be armor divisor of at least 10. Bolters are described as shaped charge mini missiles, so they will probably be 10 divisor too, but much less damage, like a gyroc round from ultra tech.

While I have no problem with that approach, even Antique Pistols dating back to Rogue Trader had a -1 modifier as did Autoguns and Autopistols. It's more of an anomaly to find ranged weapons that don't have a modifier of some kind in the current edition of any version of the table top game (including Kill Team and Necromunda). HtH tends to be a bit of a different beast because of how many attacks you get.