Couldn't u sacrifice one of the kilo's instead? there are two... or was it three kilos, the only difference is a chinese accent... so get rid of the russian one!
Really though, replacing the game's no.1 sub does not sound to great, by my 'hacking' ive added a DeltaIV(bc of good model detail, not Typhoon or Ohio) with kilo sonor stations and 688I Weapon control, and 688I weapons.
You could just do this with a kilo, and ive fixed the annoying 688I voice,*no offense to whoever made that recording*and I love the 688I...