Rundstedt Sucks

Hah! Bayonet has reliable damage for you cautious people, and statistically, Guerilla will save more HP than FS. Samurai is much better than Plunder as Plunder is just 12% (IIRC) of a single stack. More mobility is important for infantry as Wiking is pretty slow.

On Bayonet: In the long run, as you point out in Guerilla, IL does more damage. Damage is not something in which I care about consistency. If I desperately need High damage, I can s/l for a crit. Survival needs consistency. I would much rather Attack Monty with FS than Guerilla. If you say that you can s/l with Guerilla, you'd be right. However, instances in which you need more survivability are much more than those of which you need output. Plunder is still 13 HP every time you kill a stack on Infantry, and like 50 on an HT. That, coupled with attacking multiple times, and taking only 60% counters, is great. On the last note, I would have agreed with you before SF promotion was a thing, but now, it's trivial.

Why on earth would you put Rundstedt on a HT? His 2*s in tanks is trash, 0*s in mobility, trash, outclassed in HT generals, etc. Nobody is desperate enough or in that much of a pickle t put Rundstedt on a HT, as 2 of his skills rendered useless. Once again, Guerilla is mathematically proven to be more effective than FS, allow me to explain. There is a unit that always does 50 damage. Simple. Yamashita hits it 2 times. One time, he dodges the counter, the other, the counter hits. 50 damage for Yamashita. Rundstedt does the same, hitting it 2 times. 100-40-60 for the percent and 100x.6=60. 50 damage taken for Yamashita, 60 for Rundstedt. And you attacking Monty with FS is a preference. Like you like Ushijima is a preference. I on the other hand, would attack Monty with Guerilla, etc. Plunder is 13 HP, but say you are going up against a 2-stack infantry. Since Rundstedt only has shiny infantry stars and no actual damaging skills, he might kill a stack. Then what? Kill another stack with 24% IL (great btw), or have it fail and you use another turn. Finally, 13 HP, when you lose much more and realize if you are one of the 76% people for IL to fail on you, "Hey, Logistics is better than this." And the Wiking is the best Axis infantry, when Tier 3 with no promotions only +1 mobility. Unless you are an expert or on a challenge and give Rundstedt a Cossack, he will be noticeably slow.

1. Gerdy put Rundstedt on HT simply due to FS (which reduce damage taken which is quite useful since Panzer units will heavily attacked most of the time) and Plunder (Inf attack is weak so let do the Math example inf attack, Plunder give +13 Hp so 13-13=0 which means he doesn't get any damage except arty/panzer, they deal heavier damage which means Plunder useless. Although idk why would you give Rundstedt HT.
2. Guerilla has 50:50 chance so it won't always trigger, FS will always trigger and FS can be stacked with Grenadier 25% damage reduction so Rundstedt will get 65% damage reduction and this is why always give Rundstedt Grenadier while Yama is better with Wiking.
3. If rundstedt with Grenadier againts monty Rundstedt will have better survivability chance Than Yama with Grenadier simply due to those damage reduction.
4. Yeah BC is a little bit better than IL

IL is a quarter, but I find Plunder nor Samurai useful on infantry. That's the thing with Guerilla, though. It's on and off. If I'm attacking a standard infantry, I would want Guerilla, because it would reduce the already little damage I receive by more that 40%. If I am attacking Monty, I want there to be a 100% chance for me to not get completely demolished.