Things you will need:
Your turret for or torso from the walker
a small blunt object like the end of a nail or something metal
1/48th Scale Figure or a Dust Tactics figure
Really simple but cool thing to do with your mechs. Just take your walker and use the nail and push the hatch on the top of the turret. It should be hinged so just pose it tac glue it to hold it in place. Then take a figure cut him in half and glue in the hatch to look like the tank commander.
Haven't gotten the Axis hatch open yet but still trying.