How to farm from Large Snowflakes?

Tbh i do not really think you will be able to farm the node very efficiently with servants that are not very high in level

That shows your NP levels, what level are your servants? Or are you saying they're all level one? I see you have Larturia (Lancer Arturia), she'll be really useful if you have her and her skills leveled. Santuria (Santa rider) will also be useful if you have her leveled. Then just pop in a good support (perhaps an aoe berserker or a waver) and you should be fine. Heracles is really good but he's not aoe. Or you could try using a friends aoe assasin if they have a good one to take on all the riders. Again, depends on your servant levels though. That and what ce's you have to help your np gain and clear speed.

Santa Alter + support Railou (with high lvl skills and NP lvl more than 1 if possible) + Mash to protect them. I also recommend you to lvl up Mash ASAP. I think there is no other way to farm this mission more efficiently.

Yeah, that's going to be tough.

Level up your tanks (Mash, Georgios and Leonidas), then bring Herc (who you should also have made a priority to level up) and either a high-powered Assassin or Berserker.

You might be better off sticking with the Medium Snowflakes node. The boss battle there is 2x Gilgamesh, which will let Lartoria/Jailter shine, and the penultimate battle is a Caster, which Santa Alter will work for.

Arash hans ca hassan sasaki kojirou cu proto david hf hassan jing ke herc lu bu mash are your best options. Consider which ones you can raise quickly and have mats for skills