Overview
PK is an MG that deals increased Damage with every 4th attack. Her SPEQ makes this attack Surehit.
PK still has most of the regular MG issues (reloading, random targeting), though Accuracy is somewhat alleviated with this. While PK’s performance is much better with this, she is still not recommended for general use.
Note that some older guides will call Terminating Barrage MGs the “Big 4”. They may have been some of the better MGs at some point in the past, but this does not mean they have kept up with new enemies, Doll and Mods being added. Again, PK is not recommended for general use.