That is the intended solution. Well done. :thumbsup:
The bomber is a red herring. There is a section of the level that looks like it should be cleared with one, but it is designed to hide the real solution.
There is a backroute in this level, but I see no way of fixing it. I've attached a replay of it.
That's just incredible! I have always wanted to create Lemmings 3D levels! :thumbsup: How did you do it? Did you just write in the level file with notepad?
I mainly used a hex editor, but I also used Minecraft (which I was using as a level designer) and a spreadsheet (to make it easier to identify where to edit hex values and what to edit them to) as tools to aid in the process.