i mean duels are a mix of patience and raw skill.... someone for example like lebrave is a very good dueler and mechanically good. but his groupfighting skill let him down as he awareness and target switching lets him down (same as a lot of others this is just one example).... so he gets majority of his kills through chambers or being in a duel during a gf.
some people are less mechanically sound but have very good awareness, teamwork and target switching which makes them good in gf's but when it comes to duels which rely more on raw skill and timing of chambers they are not as good.
This doesnt mean that good duelers are always bad in groupfights though as they often play around the fact they are good at dueling (normally wall players imo).... and a good groupfighter can be good in duels through patience...
Spoiler
copy pasta from the other thread in response to wursti