The warmups for squats look like this
squat 45lbs x 10 reps
135 x 8 reps
225 x 5 reps
315 x 3-5 reps....then my 2 working sets.
After doing squats, I do 2-3 reps with 2/3 of my working weight for leg press, just to get the feel of it, no wamups for hacks
Hams, I start with stiff legged deads, 1x8 on 135lbs, 1x8 on 225lbs, then working weight to failure for 2 sets. Then I finish with 1-2 sets of lying curls.
Thats it
Feel free to keep asking any questions that pop up