Most of the scenes in the Terminator 2 Judgment Day movie are not CGI effects but use models.
Remember the scene where the T-1000 was shot with a shotgun right in the head?
When it comes back to form it's all CGI, but during the first reassembly, a sort of string system is used to hold the separate heads together.
Remember when he was cut by an iron bar?
The effect uses models as well.
or when he was blown up using a grenade? also using model effects.