What counts for Trap Master?

[Agenta]

What methods of killing count towards the trap master achievement. I believe the list is Cyclone Trap, Trap Rivet, Trap Spear, Proximity Mines, and Mini-Turrets? Is there any i am missing? And is there any special requirement for these ammo types for them to count towards the achievement?

[hoimingmissile]

I don't think the mini--turret counts as a trap. Regardless, the achievement only requires 30 kills with any traps, it doesn't specify any requirements for variety of mechanisms. Just use trap rivets, they're available everywhere. You can even shoot the Splicers directly with the rivets, spears, and mines. It still counts.