[Terrain]

Trees

A bit of greenery to obscure LOS and provide concealment

Barriers

Make Shift Barriers, to provide cover

Craters
Cratered earth, used as rough terrain

Modular Hills
Hills of varying sizes, which can be arranged to make different formations

Toposolitario Papercraft Battleground

2'x3' battle board, with cargo containers

Toposolitario Papercraft Crates

Further additions to the above battleground

Pipe-stack Barriers

Simple and effective pieces for cover and low walls

Mini-Dice Tower

Cheap and easy to make, with elements of full-cover and half cover for MERCS

2D Terrain Map

Simple 2D terrain for MERCS [3v3] games