Help with commandline for md5 hash crack

[MilWib]

well no, see above, using maskprocessor as input, the attack is possible, but slow

the other way would be generating a dictionary of the first half of the pass, but this would consume around 40 Terrabyte of storage (it would be possible to split these using the start and limit options of hashcat) and combine these dict with a mask of the second half of the password

so using maskprocessor would be slow, using pre generated dictionary would take some time and manual work beforehand

So, for example, I might also go by first letter? For example, I pre-generate all COMMDEPT#A???#????#????#????, then all COMMDEPT#B???#????#????#???? in separate files and, one letter by one letter, I check if there are valid passwords, keep what is valid and scrap remaining?