I'd suggest using the following method to get something looking like a tea plantation in CryEngine without much hassle of modelling new stuff:
What you'll need:
- 2 terrain materials you can paint onto your terrain (one for a path, one for dirt for the tea plants)
- 1 shrub from CryEngine that looks similar to a tea plant (you could alternately make your own tea plant model and import that)
What to do:
1) paint the whole tea plantation area with the dirt material
2) carefully paint in paths between the tea plant areas with the path material
3) create a new vegetation layer, and add a new vegetation object to it (at this point, you can pick the model from your CryEngine installation, so if you've made your own tea plant model, you can find that and use it at this point)
4) under the vegetation object's settings, you can restrict what terrain materials it can be placed on; restrict it to only appear on your dirt texture, and make sure it cannot appear on the path texture.
5) go nuts painting care-free all over the area you've designated as the tea plantation.