Very easy, Would really just be re-texturing the mechanics outfit and taking away the equability.

Maybe limit people to carrying one at a time.

On a Side note, making the doctors and Captain uniform One piece jumpsuit would be another simple improvement.

Thanks for the great game

For information about specific software titles, you could search the
the trademarks at the US Patent & Trademark Office. They have an
advanced search query that may be able to sort by your subject
(computer game software), however this is used by Patent and Trademark
attorneys and will require some learning of structure.