It's something new for me , trying to remember to make notes on what I'm doing and why , as well as finding pictures of the real thing to help explain whats going on . I might add a crew , at a later date so I decided to open the driver's hatch . Easy to do on the Rubicon kit as the actual hatch is a separate piece . Step 1 , drill a line of small holes with pin vise
Step 2 , carefully cut along dotted line
and remove unwanted plastic , file to suit
Step 3 , add hatch ( after adding internal parts if wanted and crew figure) - this is my original SU-85 hull as an example