Often I hear things like ' The crowd were noisy', which I feel is wrong - a crowd is a singular entity. What about 'The Commonwealth games is /are starting soon'?
The crowd were noisy
The crowd was noisy
Both are fine. This is just an issue of dialectal. In British English, a collective noun is often treated as a plural entity. But in American English, it's singular.
The Commonwealth games is/are starting soon.
In this case, are should be used because it's plural.