Add the option to bind a key (default:x) in the controls menu to bind a key to 'spot'. it is a much better way than to hit FWW every time, to be honest. Also, add the feature to 'spot' mines. Spotting a mine adds a small skull sprite over it for 3 minutes.
you can already bind the F menu commands to keys (read the wiki) but some servers banned it because of the constant spam
I like the mine spot but not 3 mins.. Make it as long as infantry... And yeah I like the bind key thing for it too.
You can already make mines useless when using defusal. And now you want to make them even more useless by making them very visible with a sprite on them so every class can dodge them, not just grenadiers with defusal. Not thought out idea in my opinion.
Manual bind is to complecated. New players won't know about it and have a disadvantage. Add it to the control options. Also add kill and emp_unstuck.