As of late there has been a lot of discussion in chat on how games in a series should be tagged, and it is a topic which has come up in the past. However, we have never been able to reach a consensus on how we should tag games in a series, and some games were discussed in the past and never decided on.
I'll use Call of Duty: Modern Warfare 2 as an example. Should we tag it as:
How should we tag games in a series? For that matter are we even able to agree on a general rule, or should we decide on a case to case basis?