Do Bulletins Stack?

I was just looking at the bulletins and I noticed the veteran infantry bulletin which gives you +2% Accuracy and 3% Health in one bulletin then there is two other Separate bulletins giving 2% accuracy and 3% health. So theoretically you could choose these three bulletins for a total of 4% accuracy and 6% if bulletins stack.

Can anyone answer this question?

In coh 1 bonuses from abilities, vet, ect stacked reliably so there was a good system to deal with multiple modifiers on a unit value. So yes they should stack.

Now mathmatically stacking works in another way, 3% more health is not relative to the base health, but to the health the unit has after other modifiers could allready have been applied, so if i have a unit with 100 hp and have a 3% and then another 3% health increase that results in

(100*1.03)*1.03 hp = 103*1,03 hp = 106,09 hp =/= 100*(1.03+1.03) hp

you might say its only a tenth of a percent difference but with different values the effect can be more significant. In vcoh PE offensive vet gave 15% accuracy bonus, at vet 3 offensive vet they had an 52,0875% bonus (1.15³) instead of the 45% you might expect.

Worst example was the pak-bug where you could apply the modifiers for cloaking a pak multiple times which could then 1-hit a king tiger. It gave 25% damage bonus while cloaking, now this applied 10 times wouldnt result in 250% damage bonus but instead in 1.25^10 = 9.31 times the damage (831% bonus).

now some games choose not to use this (natural) mechanic of stacking, i.e. wc3, but seeing as vcoh used it there is no reason why coh2 should be different

Bump.

I'd also like to know, perhaps an official confirmation?

Its called either additive or multiplicative stacking.

If 2% bulletin and 2% bulletin stack to 4%, its additive. If the second 2% bulletin adds only 2% of the initial 102%, its multiplicative.

I certainly hope they are multiplicative, or else many bulletins become very problematic when stacked.

Theres also the possibility that the "stronger" bulletin overrides the weaker.

Relic will have to tell us how they did it...

Surely it would be easy to test. There are a few bulletins that speed up tank build times. Anyone who is far enough along could just get a stop-watch and build a tank with multiple x% quicker bulletins. That would answer the general "how it's done" thing, and would be free from RNG and thus more accurate.

It multiplies, and yes bulletins do stack.

It multiplies, and yes bulletins do stack.

does multiplies mean more than additive?

A nevroed tthread comtaining a nullist post... Cool

It multiplies, and yes bulletins do stack.

Same bulletin 3 times stack?

So 3 bulletin for 3% accuracy means 27% accuracy?

So 3 bulletin for 3% accuracy means 27% accuracy?

More like if 100% is base and you add 3%, then you'll have 103% as new 100% and bulletin will add another 3% to that new 100% value which not is 103% and so on.

Simple, right?

More like if 100% is base and you add 3%, then you'll have 103% as new 100% and bulletin will add another 3% to that new 100% value which not is 103% and so on.

Simple, right?

not when you explain it like that. its just 1.03^3

1* 1.03= 1.03

1.03* 1.03= 1.0609

1.0609* 1.03 = 1.092727 = 1.03^3

the difference between multiplying and adding is really negligible though (in this case, with 3 bulletins at 3% the difference is .2727%)

What about the -10% suppression bulletins? If I stack 3 do my units get suppressed at 73% of the normal rate? That does seem like it would make quite a large difference.

What about the -10% suppression bulletins? If I stack 3 do my units get suppressed at 73% of the normal rate? That does seem like it would make quite a large difference.

Yep, but that's all your bulletins used to get about 1/4 less suppression on one unit.

Bulletin effects are still negligible.

27% is not negligible. Frequently there are cut-off points for various things, like how adding just 1HP to a tank would make it take 1 more shot to die. It often takes 1 full burst from an MG to suppress a squad, if they received 27% less suppression they might be able to take a full burst and keep moving, and that is a very large difference in how engagements play out.

So if you combine 2 penetration bulletins with ZIZ AT gun that has 180 penetration at long range, does it get 246.6 penetration with VET 3 + those 2 bulletins combined (30% penetration from VET 3 and 4% & 3% penetration bulletins combined)

I´m more interested in knowing if same bulletins stack.

Pqumsieh plox.

Oh yeah I'm so tired, thanks for the correction. Obviously it's not 3*3*3 = 27% but 1.03 * 1.03 * 1.03 = 1,092727 (9,2727%) instead of 1,09 (9%) if that was additive.

I´m more interested in knowing if same bulletins stack.

Pqumsieh plox.

Im still waiting the answer of someone....

So, how much pen does my puma have when i have 3 x 4% pen for pumas
Maybe they can take on them IS-2s =)