SOF has some great graphics for its time. My favorite is when you fire the slugthrower. The slugs look awesome. Looks like a big fireball going at the enemy. And the detail of bodies with blown-off limbs.
Sound is awesome too.
The machine guns sound good when its shooting some good slack. Different types of weapons sound good too. The microwave gun has a good frying sound. The language of the enemy is great too. The explosions are great, has a good blast sound to them.