For the vehicle boarding, I've been wondering about something.

Because it is kind of a hassle to launch a separate app to use the feature and it makes the game seem slightly less polished, I was wondering if the following method would be at all possible.

With rec0's Devicator, he offers a couple modified files in the release. One of the files, probably strings.dll, silently executes haloceded_extended.exe upon the launch of haloceded.exe (which loads strings.dll by default).

If something similar can be done with the hijacking (and possibly even more), then all you would have to do is replace the strings.dll (which would also FORCE users to use 1.08 and increase the LEGAL population!) and copy the app into the CE directory. On haloce.exe's launch, it will load strings.dll and then silently load the hijacking app in the background, and you wouldn't even notice it was running. Then it would also always work and be waiting for whenever you either enter a server with hijacking/mtv or start a singleplayer game with hijacking.