On ambushing ranks with open ambush

[Rinualdo]

Some tidbits today

Naijin spelled out today that ambushing has a hard cap of 95%. He asked for approval to release the formula but indicated that if you are capped and 2x CM, there was no need for any ambushing ranks for open ambush except perhaps a few needed for a lance. Some relevant quotes below but more details in #mechanics with the timestamps.

Naijin — Today at 11:35 AM
You really don't need ambush if you can 2x CM and you're using a one hander that's not a ball and chain.

Naijin — Today at 11:42 AMThere is no soft cap. Your skills + stats + weapon add up to a 95% chance to succeed in the ambush.
After that the chance is modified by the location your aiming at as well as the target status

Naijin — Today at 11:51 AM
There's a hard cap of 95%. Period. You'll never aim better than that.

[Rinualdo]

also formula provided just in case it doesn't make it into the wiki

An initial d100 is made. If you roll <= 5, you auto fumble. If not, then there are some skill checks that are done.

Skill:
Hidden => Ambush
Open => TRUNC((CM Bonus + Ambush Bonus + 1) / 2)


Stats: Dex Bonus + TRUNC(Int Bonus + 1) / 2))


Weapon Modifier: Varies based on weapon. Large/slow weapons have more penalty. Small and maneuverable weapons have a bonus.


Example: 202 CM + Lance (-50 aim) aiming at the head
d100 = 84
Skill = ((302 + 0 + 1) / 2) = 151
Stats = (20 + (22 + 1) / 2) = 31
Attacker modifier = 0 (sitting or prone = -100)
Weapon Modifier = -50


Total = MAX(95, ((151 + 31 - 50) / 2)) = 66


Area Modifier:
Head: -10
Neck: -15
Arms: +10
Legs: +15
Hands: +5
Eyes: -25
Other: 0


Target Status:
Sitting/Prone: +10 if head/neck/eyes, +25 otherwise.


Result = Skill + Area + Target Status + d100 = 66 - 10 + 0 + 84 = 140 > 100 = Success

[Skeletor]

Cheers.

[Rinualdo]

And weapon modifiers that Naijin posted.
Someone should be placing on wiki.

Also in case it was missed: lvl and status effects do not factor in

dagger: +25, 0ftfalchion: -5, 1ft
hand axe: 0, 1ft
main gauche: +5, 0ft
scimiatr: +5, 1ft
rapier: +15, 1ft
broadsword: 0, 1ft
short sword: +10, 0ft
long sword: 0, 1ft
fist: +10, 0ft
tiger claw: +25, 0ft
club: +10, 1ft
war hammer: +10, 1ft
mace: +5, 1ft
morning star: -5, 1ft
whip: -25, 2ft
battle axe: -25, 2ft
flail: -40, 2ft
war mattock: -20, 2ft
quarterstaff: -5, 2ft
two-handed sword: -30, 2ft
javelin: -50, 2ft
lance: -50, 3ft
spear: -10, 2ft
spear (2h): -20, 3ft
military pick: -25, 2ft
awl pike: -55, 3ft
claidhmore: -30, 2ft
backsword: 0, 1ft
estoc: 0, 1ft
bastard sword (1h): -15, 2ft
bastard sword (2h): -5, 2ft
crowbill: +5, 1ft
flamberge: -10, 2ft
hammer of kai: -35, 3ft
jeddart-axe: -35, 3ft
ball & chain: -35, 2ft
pilum: 0, 2ft
naginata: -25, 3ft
cestus: +10, 0ft
paingrip: +10, 0ft
razorpaw: +10, 0ft
knuckle-duster: +10, 0ft
hook-knife: +25, 0ft
blackjack: +15, 0ft
knuckle-blade: +10, 0ft
yierka-spur: +20, 0ft
troll-claw: +5, 0ft
fist-scythe: +10, 0ft
jack-blade: +10, 0ft
katar: +10, 0ft
katana (1h): -10, 2ft
katana (2h): -5, 2ft
maul: -20, 2ft
sai: +10, 0ft
trident: -10, 2ft
trident (2h): -20, 3ft
whip-blade: +10, 1ft

[gilchristr]

Did he say whether injuries present on the attack reduce chances (like if you have a missing eye when you are aiming for the monster's head).

And if so, can ambush training still be beneficial at cap even with 2x CM to offset the penalty?

[Rinualdo]

It would appear that there are no negative modifiers.

[lexbubba]

At 40 ranks of ambush (and 202 CMAN ranks), I still feel like I nail a lot more aimed open ambush locations than i did at 24 or 0 ranks ambush. No scientific study evidence here, but feels noticeable. Is it maybe because I am overcoming the negative maul modifier?

[rushblitz]

So Lex quick #'s here don't know DEX or INT (Assuming 25 bonus in each) but at 202 CM and 140 Ambush your at 83.5% head chance without it prone. at 24 ambush it is 74% and 0 ambush it is 48.5%. If you prone it add 5% as this takes out the -10 head modifier and adds +10 to position.

[Arqueto]

I think you're mixing skill and bonus values here for CM and ambush. 202 CM would be 302 bonus.

[rushblitz]

You are right, I was using 202 instead of 302. 108%, 99% and 73.5% for the same three break points then.