A WotR FPMV Attempt Battle Simulation with 1000 trials

The attackers won 420 times. The defenders kept the stronghold 580 times,
including 28 mutual destructions. The battles took an average of 2.8 rounds.
Attacker HP
Remaining
Frequency Sum
0 220 220
1 323 543
2 193 736
3 128 864
4 94 958
5 30 988
6 12 1000
7 0 1000
Defender HP
Remaining
Frequency Sum
0 448 448
1 174 622
2 170 792
3 119 911
4 73 984
5 16 1000


Reg Elite Leader
Attacker:
Defender:
Captains of the West:
Presses left before
reducing an Elite:
Trials:

Presses left before reducing an Elite controls how you take casualties. For example, if you have 2 regulars and 3 elites and need to take a casualty, should you reduce an elite or lose a regular? If you lose a regular, you're only rolling 4 dice, but you could potentially have an extra press.

Say you have 4 elites in your army, so you have 4 presses left. If "Presses left before reducing an elite" is set to 4 or lower, you'll reduce an elite when you need to take a casualty (and then you'll have only 3 presses left). If the value is set to 5 or higher, you'll lose a regular (reducing your combat strength below 5).

Of course, if you have more than 5 combat strength (including Captains of the West), the simulation will always take regulars as casualties first.

The attacker always fights until the defender is destroyed or there's no way to press any more.