Couple of tips re the T34 Martin. I have now added the tracks and a few things came to light that you may want to be aware of.
1) Do not glue the back engine cover or the the ball machine gun in place after you have screwed the top on to see what it looks like (I know you will) and spray/paint it up. You need to be able to take the top off. (see 4)
2) if you want a laborious but easier way of painting the road wheels, attach the small hub cap things but do not glue the wheel halves together. Spray or paint them up for the green and the tyres and then stick them together. trying to paint the tyres when glued up is a pain as you have the inner sides of the tyres to do.
3) The front idler wheel is mounted on an eccentric shaft in the rubber bushes. This means that the idler wheels are a tad floppy and can move quite a distance from the front road wheel to almost touching it by twisting it on the shaft. To fit the link and length tracks as described in the instructions, the front idler wheel must be almost touching the front road wheel. Make sure you do not glue the front idler or you may not get the tracks to fit as they should. While glueing the tracks together and letting liquid cement run onto the rims of all the wheels, this, when set, will secure the idler and it will stay put.
4) The reason for 1. You will have a real problem trying to fit the tracks if the upper hull is in place. Do as much painting as you can with the screws still accessible and the wheels off. Once you have the tracks on and painted, you can then add the top but leave the screws still accessible as it may be needed to mount the driver (?) before adding the top. One, because his shoulders and arms only just go through the hatch with lots of twisting about so it may be easier to blue tack him into the lower hull, place the top on loose and when you are certain of the position, glue him in place and replace the top.
The commander figure is designed to have his head pocking out from the port side of the large commanders hatch. The hatch will need to be glued in place when you have the commander figure assembled as you will ned to have the stumps of his legs on the plate that hangs under the turret and his right hand holding the top edge of the hatch, his left arm is bent along his belt line so that does not matter. If you look in the instructions for the figure pack, there is a line drawn on the commander figure representing the T34 top hatch.
Unfortunately, as the commander is to the port side of the hatch and it is a big space, you can see into the totally empty turret quite a bit. I will be getting around this by judicious positioning of one of the tank rider figures to make this void less noticeable. You could detail the interior of the turret if you like