RESIDENT EVIL 5
70 Achievements
1,400
40-50h
Meat Shower
Defeat 3 Majini with one grenade or proximity bomb.
15
How to unlock the Meat Shower achievement in RESIDENT EVIL 5 - Definitive Guide
If you're having trouble, take away Sheva's gun before starting the mission.
Mercenaries - Solo - Public Assembly
Choose anyone with a grenade (i used Jill in Battle Suit)
Head to the bus and run in circles until you have a group of zombies
Throw Grenade - achievement unlocked
End of Chapter 1-1 will be your best bet, wait until you get a group of Majini and throw a Hand Grenade at their feet and boom!
There are various points in the game where there will be several Majini close together. The first chapter contains a couple of sections with infinite enemies where you could easily achieve this.
The first area is quite early in the level after you jump out of a window. Once you turn the corner an onslaught of zombies will come after you, ignore your partner's whining and lob a hand grenade into the crowd. The second area is the timed section at the end of the chapter. Enemies will keep spawning and coming after you until back-up arrives which lasts a few minutes. If you stay in the house, they may stop spawning eventually so move around a bit.
End of Chapter 1-1 will be your best bet, wait until you get a group of Majini and throw a Hand Grenade at their feet and boom!
If you've been collecting items through the first mission you should have at least one grenade by the time you reach the boss (with the executioner). If not then there's loads sattered in drawers and hidden in piles of fruit, which you can slash with a knife.
Press and equip it from your inventory. Throw it at a group by the window or out in the open and there's your trophy.
The trophy can also be obtained in Mercenaries mode.