About last fight:

1st. u saw his ramp, u could shot it down especially if he is not putting walls and then ramp to him.

If enemy is just turtling like he did in ur video, try to locate him and maybe try to edit kill him or also if u r good builder u could move to that house roof and just shoot everything down and reset everything and dont let him turtle next time.

And last, u shouldnt stay right in front of his walls, ramps for too long, also doing that from below leads to easier dead for u. U should've tried to replace walls from above not below. Most of the times they are waiting for u to come and then edit like he did.

But thats how i tried to play it, maybe someone have other tips for it