The Grenadier is a bulky, middle aged man with a moustache, who wears a thick green vest over his uniform with a bandolier of grenades that he throws and a blue beret.
His uniform underneath the vest appears similar to the Rifleman's.
The Grenadier's weapon of choice is the stick or 'potato masher' grenade.
Grenadiers have a very low damage-per-size ratio against single targets, mainly due to their inaccuracy. Due to the Grenadier's tendency to overshoot his target, you will often find buildings behind the one being aimed at getting destroyed first. If they can hit a closely-packed set of buildings their area of effect will definitely help, but since many players space out their buildings, particularly defense turrets, in order to avoid them all being more vulnerable to Artillery, Barrage and Shock Bombs, it could be difficult to get the Grenadiers to take advantage of this.
The Grenadier's accuracy improves the closer it is to its target, so if you want the Grenadiers to destroy something more quickly, Flare them close to it.
Be advised, however, if you flare them too close to their target, they will damage each other due to the splash damage of their grenades.
Also, when targeting a defensive building, remember to shock it to minimize death.
Although the Grenadier's range is shorter than that of Sniper Towers and Boom Cannons, their inaccurate shots and splash damage allow them to attack these defenses without getting hit provided that they are targeting another building. Therefore, it is not a good idea to directly flare onto defenses.
Another great Grenadier strategy is the Grenadier-Rifle-Medic tactic (Full guide by Kaiser Emotion). This tactic works in waves, the Grenadiers and Medics going first to get rid of most of the defenses and the riflemen to finish off the base.
The Grenadier's grenades usually overshoot the target but rarely undershoot. Thus it is generally not advised to use this troop with Warriors because his grenades can hit them. Zookas do not work well with them, as they are incapable of taking both Sniper Towers or splash defenses' damage.
Some players use them as minesweepers and deliberately avoid upgrading them to do less damage to friendly troops.
The Grenadier's range is bigger than that of a Cannon's, but just barely. A Cannon can easily kill a Grenadier in one shot, so do not Flare close to one.
Also, be wary of letting Grenadiers approach a Cannon in a dense group. While moving into attack position, some may be pushed into range of the Cannon.
You will have to be careful to avoid running out of time on an attack if you only use Grenadiers. Players typically bring a Landing Craft of Zookas to finish the Headquarters off once the defenses are out of the way.
It is strongly discouraged to use Critters with Grenadiers, as the grenades may easily destroy them in two hits or even one hit. If you wish to use Critters, make sure that the Critters will stay out of the damage area of the Grenadier, which may be unlikely given his inaccuracy.
High-level Shock Launchers are also vital. The stun time, paired with the Grenadier's inaccuracy, can potentially make an attacker run out of time in an attack.
Because the Grenadier does area splash damage, it is not advised to group Buildings together.
Do not place Economy and Support Buildings in front of your defenses; when Grenadiers are attacking these buildings they usually overshoot and hit the defenses instead, usually without counter-attack from the defenses.
Placing Sniper Towers in front of all your buildings and your Mines spread-out in front of the Sniper Towers is a good way to defend against Grenadiers.
There are no visual changes between levels, but each upgrade increases the Grenadier's hitpoints (by 6%), DPS (by 7.5%), and training cost (by 1000 gold).
His beret suggests special-operations training.
The Grenadier, along with the Scorcher, are currently the only two troops that can damage friendly troops.
The Cryoneer can freeze (but not damage) friendly troops.
The Grenadier, Scorcher, and Cryoneer are the only troops that can affect friendly troops.
The Grenadier's grenades appear to have the same explosion as Artillery. Despite this, the damage radius is much larger.
The Grenadier has the slowest moving projectile of all the troops.
Occasionally, a Grenadier's throw will go a very massive distance, almost matching the max range of a Shock Launcher.
The Grenadier upgrade to level 12 is the most expensive Armory upgrade in the game.