Can't believe this is even a question.
I had a similar situation a few checkides ago. Normal ILS with both engines running, and an engine fire somewhere between 500 and 1000ft (can't remember). Silence the warning, declare an emergency and land.
Then there was the CRM scenario where on final, the FA calls and says there's smoke in the cabin- one (albeit new) guy said he'd go around and hold to investigate
