Close, but not quite. Since you are specifying the specific nicks to be used, rather than using the nicks as configured on mIRC, remove the occurances of $mnick and $anick

Thus giving you a code that reads
Code:
Alias F2 {
.nick $iif($nick == [LZ]DevilHunter,[LZ]Devil|In-Game,[LZ]DevilHunter)
}