Ok, a couple of issues with the Warlord Pak 38. Firstly, straighten the axle assembly, it is slightly bent which will throw everything off. Secondly, the barrel isn't great. if you were perfectionist in nature you would be using sandpaper to work on the dimensions near the muzzle brake (drill that out by the way). The surface contacts aren't huge so be prepared to either sit holding it while the superglue sets, or build some jigs. The wheels are missing grooves, so again.. if that bothers you.
Order of build is important. Leave the trails off till just before attaching the lower front shield.
1. straighten axle assembly, glue on left hand side of mount, make sure the front angle exactly corresponds to the fixed right hand side. If necessary, once glued, use a flat file to get the correct angle.
2. Attach barrel. Check how straight this is on the mount, as the little lip on the underside of the recoil mechanism is not flat out out of the mould.
3. Attach wheels or main shield either will do. If attaching wheels, you may find it easier to make parallel scores in corrugated cardboard or similar as a jig to keep them aligned straight when glued.
4. Attach the bit you didn't do in 3.
5. Bend down slighly the lower part of the pivot assembly on the trails, attach trails (note that the towing eye goes to the inside, as do the handles) and gently squeeze teh pivot hinge back into place. glue from underside.
6 Attach lower shield. You may find (depending on wheel assembly) that you need to file down the edges slightly to make it fit between the wheels.
Will post a pic tomorrow.