The step by step process I use to true scale my older Terminators for better proportioned models

I first started playing Space Hulk in the early 90's.
That's where I fell in love with Terminators and I've played them ever since. Over the years, I set out to make improvements to how they looked.
This post walks through the steps I take to modify my older 2005 plastic sculpts.

Step 1: Lower the shoulder attachment points on the torso.

Take your hobby knife and cut away the top portion of the arm attachment points.
This will allow us to attach their arms lower on their torso later on. Doing this helps get rid of that hunched over look they're known for. You can check to see if you've cut away enough of the attachment point on the torso by holding an arm in place. The bottom of his arm should be half way down that little extension piece (half way between the red lines). Step 2: Widen and extend the torso

This is done by adding greenstuff all the way around the model's waist using his existing belt as a guide for how thick we want to make it.

The idea is to make his torso as wide as his existing belt all the way around and go a little bit higher than the mounting point for this torso. Don't worry if you go too high, it can be cut back down to get the correct height later. Let this cure before moving onto the next part. Do not try to do both at the same time!

Step 3: Resculpt the belt back in place

This is a little trickier and maybe the hardest part of all. Since we pretty much removed the belt by widening his torso, go back with a thin strip of greenstuff and add a new belt. I will add it all the way around and then trim the top edge down to where I want it to be.

The top edge of his belt should only be slightly higher than his hip plates. Make sure not to obscure his belt buckle when adding the new belt back in.

Getting the "correct" torso height

When you set his torso on his legs, we want the back vent to be almost touching his new belt. Position it evenly and adjust the model's height by trimming down the greenstuff we added earlier. Trim it down as needed until he's the correct height. Then you can position his torso to where it needs to be for his final pose and glue everything in place.

Step 4: (OPTIONAL) Adding the leg armour reinforcements

Sometimes these can be a pain to do because they're so small.
They're added to make the legs appear bigger without having to do a ton of sculpting to actually make them bigger. The reinforcement is made of two parts, the leg strut and the knee joint. Making the strut is a matter of rolling out a thin length of greenstuff and attaching it along the inside of each leg from his pelvis down to his knee. Do the best you can to shape it so it looks like the other reinforcements. If you're careful, you can do both struts at the same time.

Let the struts cure before moving on to the knee joints.
Do not try to do both at the same time!

Making the knee joints is a matter of pressing two balls of greenstuff into position.
Make sure the ones you add to the insides of his knees are the same size and sit at the same angle as the existing ones on the outsides of his knees. If the angles are different, it really looks out of place on the model.

It's best to wait until the bottom layer has cured before adding the top layer. This is so you don't deform the the bottom layer when you're pressing it into place.

Step 5: Placing the shoulder pads in the correct position

Since we lowered the arms, we want to raise the shoulder pads back up to where they were to keep the iconic silhouette. This is done by setting a small ball of greenstuff on top of his arm before gluing the shoulderpad in place. I try to line the bottom of my shoulder pad with the bottom edge of his actual shoulder as shown in the pic below. Depending on how his arm is positioned on his body (bent, extended, hanging, etc.) it may not be prefectly lined up. In this case, go with what looks right. That's all there is to it

This is my best example of what they'll look like following this process. Once you do it a couple of times, it goes fast.
Good luck!

Additional links:
• All my other posts related to true scaling
• Further reading: Take a look at other Modeling posts