How can I filter by a term when on a sub-page of that term? I have a non-hierarchical taxonomy and 2 content types.

I need to make these pages with Views: 

Mysite.com/something/termA/ContentTypeA
(This will display nodes of content type A that are tagged with termA.)

Mysite.com/something/termA/ContentTypeB
(This will display nodes of content type B that are tagged with termA.)

Mysite.com/something/termA/ContentTypeA
(This will display nodes of content type A that are tagged with termA.)

Mysite.com/something/termB/ContentTypeB
(This will display nodes of content type B that are tagged with termB.)


In actual fact there are a lot of terms so I need these pages to be from 1 or 2 Views (EG with dynamic filters). I cant just make 4 Views with static filters. 

I could create 2 Views, one for each content type. Filtering by the content type is simple so my issue is just that I need to figure out how to filter by a term when you are on a sub page of that term, not on the term's page itself. 

Eg filtering by termA on this page is easy: 
Mysite.com/something/termA/

But how do you filter by termA when on this page?
Mysite.com/something/termA/ContentTypeA
I'm a little confuse on what you're trying to show but I think you can do what you want with contextual filters. 

To do so: 


Add taxonomy to the filter critera (Has taxonomy term ID)
In the first section (when not available), select Provide default value
Type : Raw Value from URL
Select your path component (let say 2 for your term1, categories would be 1)
In the "When the filter value IS available or a default is provided" section, check "Specify validation criteria"
Validator : Taxonomy
Check the appropriate vocabulatory
Filter value type : Term name converted to ID


What that filter will do is check a part of the url and match it against the vocabulary. If a term is matched, let say term1, it will show nodes that have the term. You can add multiple filter to validate multiple part of the url. It's pretty much the same for the content types. 

So /term1 could filter all node with term1. term1/activities could filter all term1&amp;activities... You get the idea. Just don't hide the view if the filter doesn't validate, make it show all results.