Hey guys

I'm planning to rent a VPS (located in Spain) for a CoD2 server, and I want to ask you: which specs do you guys consider are OK to host a server (20-30 players)?

Sorry if this is a noobish question, but I need to be sure before paying

I've also seen cod2 rental servers offers in spain, but some VPS offers are quite cheaper, so they are not an option.

Ty