How to use grenadiers and light infantry?

[Fisherking]

My normal army stack consists of 6 line infantry, 2 light dragoons, 2 Howitzers and 2 Howitzer cannons and a general.
So far i cant quite picture grenadiers and light infantry usefull in this army setup or am i missing something?

You still have seven slots left?

Grenadiers and Light Infantry are both Elite units which give you capabilities that line infantry does not.

Light infantry has greater range, skirmishing abilities, and obstacles. Later they also have the light infantry formation. They posess greater accuracy than line infantry but are not melee troops. These types also include riflemen.

Grenadiers are heavy infantry with higher moral, greater accuracy, grenades, and better melee abilities then the line infantry. They can be devastating in a number of ways.

I like to have Grenadiers at about 1 to 2 line infantry and having two light infantry per army. That is if you are going to fight your battles and not auto resolve them. In that case put in Grenadiers to boost that up.

The only stacks I don’t include grenadiers in are my fast troops. These are just light dragoons and light infantry with perhaps some galloper guns, but they do slow it down.