AN94: Due to its new high rpm, high range and low recoil this is an excellent killing machine, even at a distance.
Type 25: Select fire makes this high RPM gun alot more usable, acting as a super grip, making it easy to get long range kills. It out does the burst fire AN94 close range, even though they have the same rpm due to it being a 3 bullet burst instead of a 2 bullet burst.
M27: This gun is in no way extraordinary but this setup was meant to try to replicate the ACR as close as possible. With its already low recoil we added the grip+acog to achieve +4% faster recenter speed (yes thats right acog acts as a grip).
Neither the AN-94 or Type 25 is capable of killing in one burst. Using select fire on the AN-94 makes very little sense while using select fire on the Type 25 makes none whatsoever.
The M27 is garbage. And combining the grip and ACOG increases center speed by 4.04%. It's splitting hairs, but if you're going to cite statistics, make sure you're citing the correct statistics.