My teammates saying that surrendering won't give elo back when the cheater gets banned by battle eye (Ubisoft). But I don't wanna waste time on obvious cheaters but don't wanna give free elo without getting it back.
Hey Marshall.CCCP, thanks for getting in touch and apologies about the delayed response from our team.
If a cheater has been suspended and you have been playing in a Ranked match against them, regardless of the outcome of the match - whether you lost/won/surrendered, you will always receive MMR/Elo rollback.
Hope this helps and should you have any further queries, let us know!