In my experience as both mining and being outside of mining when antag roles are things for example cult, if you can take the miners you're damn near assured to win the round, couple that with several times as security or even as a borg i've had several incidents where Miners with the full drake armor and gear have willingly fired into mass groups of security who had things under control for the most part. Their only response however when questioned on anything was simply 'Oops'.
It may also be worth note that on a good number of occasions a changling has been a miner and they simply waited until they had the lavaland gear and pretty much just went on a murder bone quest at that point.