Hello!
Me interests that. In Q4F Alpha Fortress there is a function. At the Engineer. It(he) is able to build machines.
Whether probably to transfer her(it) in Quake4 1.3???
Screenshots from menu and machine Sentry Gun:


Help me! Please!!! Very much I want to play Quake4 1.3 with Machines!!!

I hadn't thought to ask before, but why all the effort porting stuff to Q4 1.3? Why not use 1.4.2?