Probably not the greatest idea to use it for reverse.
This is a topic that has both divided opinion & ignorance. I've worked for various airlines; only 1 had an SOP of NOT to use T/R on and engine with a fire warning. Some had a 'beware' 'consider' philosophy. Some had never thought about it. None of the FCTM addressed the problem. Given that T/R's are a bonus in the stopping calculations IMHO it would be good airmanship not to use T/R with a Fire RTO nor to use T/R with a damaged running engine for RTO or landing.
My point is that there is so little guidance, and in this day where in-depth airmanship is a diminishing element under the onslaught of rigid SOP's, lack of guidance can lead to lax and dormant thinking in NNC's.