Shotgun Farmers

The PK2 is the pineapple grenade which spawns e.g. on the Roadside-Map next to the open truck.

1. Equip the grenade.
2. Search for a group of enemies.
3. Activate the grenade by pressing and holding and immediately run into the group.
4. Let the grenade explode in your hand, commit suicide and kill all the enemies around you.

In my opinion the best and fastest way to get these 150 PK2 Kills out of the way.

I had no luck throwing grenades at the opponents. They always ran away.

Hope this tip helps you out:))