Tiny Troopers
20 Achievements
200
6-8h
Grenadier
Kill 50 Enemies with Grenades
5
How to unlock the Grenadier achievement in Tiny Troopers - Definitive Guide
If you don't get it by the end of the campaign then i would suggest to go to missions, chapter 2 - mission14, and once in game purchase 2-3 crates of grenades.
The reason i use that specific mission is :
1) Its only infantry
2) The enemy infantry are close together and they swarm you all together. So i would suggest to gather as many enemy infantry together and let them chase you, once you see around 20 together throw a grenade and rinse and repeat until all the infantry is gone. Just make sure you throw the grenade in front of them as it takes some time for the grenade to explode and the enemy troops are moving towards you.
If you don't get the achievement right away, repeat the mission and on the second time it will be yours!
These achievements require that you kill a cumulative total of 50 enemies with each of the heavy weapons across all plays and replays of each level. Grenades and rockets can often be found on the ground in missions, but air strikes will need to be purchased from the command center for 24,000 CP. While completing the campaign, don't be shy to use your heavy weapons. By the time you complete the 30 campaign missions, you may already have these achievements done. However, if you do not, load up Mission 9. This particular level has a bunch of groups of infantry. Purchase/pick up which ever heavy weapons you need and proceed to kill the group of enemies with them. To save time, you can abort the mission at any time to restart with fresh groups of infantry. It should take less than minutes to knock each of these out after completing the campaign, as long as you have enough command points to support the purchases of the heavy weapons.
Getting 50 kills with grenades, air strikes, and rockets will unlock the "Grenadier," "Spotter," and "Rocketman" achievements, respectively. The achievements will pop as soon as you reach 50 in the middle of the mission.