I've been modeling in 1/72 scale for over 20 years......still do. Wash your
soft plastic figures with
dish soap and a small toothbrush, use oil based paints only, they look better and adhere extremely well. again same technique as larger scales just less of it. I would forget about shadow washes as you won't really see it in this scale. You will get the same effect with your base color and 2 drybrushings of lightened base color. Keep the paint colors dead flat (no glossing) the realism will pop when they are done. fleshes can have slight gloss if desired. all piping,trim, metal hardware paint as normal. Depending on the usage small amouts of black can be added to these colors to make them look "used". Clear coat with Testors dullcote or similar (be carefull DO NOT SOAK COAT THE FIGURE) Keep it dead flat, keep your dry brushing under control(less is more) use 4/0 thru 10/0 sable brushes for area painting and details. For dirt and grime pastel powder is you best friend.
1/72
ESCI Elefant built out of the box