On the risk of stating the obvious, here is a simple way to run recorded VBA macros in MS Word for Mac.
Firstly, you record a macro in MS Word that contains the steps that you want to execute.
Secondly, you assign a keyboard shortcut to that macro. You can use "exotic" combinations like Control+Option+F12+End (since you won't be pressing these keys yourself, so no worries for getting your fingers twisted).
Thirdly, you create a Keyboard Maestro macro that activates MS Word and types the keyboard shortcut assigned in the second step.
Examples:
BTW: I wouldn't be surprised to learn that it is possible to run a VBA macro via AppleScript (and thus via Keyboard Maestro).
Just tested this, and indeed this works:
tell application "Microsoft Word"
run VB macro macro name "test"
end tell