Hai Guyz! Resident GW White Knight here.
In a previous discussion about the Typhon and Baneblade I ran some numbers and found their durability to be too close to call, however, I found a bug in the program that miscalculated some armor saves so i'm revisiting the topic here.
(Sorry about the varying chart lengths)
Lascannon vs BB and Typhon
This is the % chance to kill each with a lascannon in a given number of shots. You'll see the Baneblade has a huge skew to the left. The two cross at 26 shots. There is a 78.5% chance to kill a Baneblade in that window where the Typhon is sitting at 41.6%. That's a pretty significant jump in durability.
Melta Gun vs BB and Typhon
This is the same method with a melta gun. It's even worse for the BB here of course with the lines crossing at 30 shots. That makes it 81% vs 38%.
Assuming a base cost for each the Typhon will be around TWICE as expensive as the Bane Blade base cost.
Now for their weapons...
BB and Typhon vs BB
This is the Dreadhammer and BBC shooting a Bane Blade. They cross at 3 rounds of shooting. The BB sits at 66% and the Typhon is 60%. Slight advantage to the BB.
BB and Typhon vs Typhon
And now both of them shooting a Typhon. Crossing at 4 rounds of shooting the BB is 64% and the Typhon is 93%. In addition at 3 rounds the Typhon is 72% and the BB 36%. A pretty good domination here.
Conclusion
The Typhon very clearly should cost more than the Bane Blade. It is twice as durable against the weapons that will hit it most often. It's gun is also more effective at the hard targets a Bane Blade wants to shoot, almost equally as good otherwise, and perhaps worse against soft targets it wasn't meant to shoot. In a previous thread I roughly determine the BBC to be worth 120 to 180 points. That leaves 210 to 270 for the base cost. Split down the middle and double is 480 points. The Dreadhammer is better by 50% where it counts. The average BBC cost is 150, so add 225. This places us at about 705 points, which is damned close the current points.
That is close enough to make me confident in the current valuation.
Yes, there are stratagems, regiments, and so forth that can improve performance, but these are NOT things included in point costs.
How Can I Trust Your Data?
This is a program that rolls a
D6 (or D3) for every time a dice is needed. It uses Mersenne Twister two determine the random rolls. Logic loops handle the rest including doing rerolls before modifiers. Here is a sample logout put of the BBC firing at the Typhon:
EDIT:
Made a few minor edits from mental screw ups.