MTBR:
there's another slider if you scroll down, turn that 1 off too. OOOppp...never mind i see you said "game commentary" slider.....another glitch it seems.....where is that Irish dude from Star Trek, I bet he could fix it.
That Irish dude is Scottish, he's the engineer, he had to be Scottish.
From Wiki - Montgomery Scott was claimed by Linlithgow, Scotland in 2007 by a commemorative plaque from the West Lothian Council for Doohan's importance.[48] His birthplace is also attributed to Aberdeen[49] where Doohan learned the accent,[50] or Elgin. Scotty's accent chosen by Doohan implies most formative years spent at or near Edinburgh, also per possible original script notes.[51]
James Doohan who played Scotty (there's a wee hint in his name) was Canadian.