I don't know any japanese (beyond weeaboo level) but having read the 4th album like 10 times it doesn't matter.
Anyway Hellsing in nutshell is always:
1. Alucard bored
2. Nazis, thousand of em
3. shark-grins for 20 pages
4. battle + shark-grins
[spoiler}6. Schrödinger haxx[/spoiler]
No need for language classes for this one.