Getting in over my head with the source code

[PIGEXPERT]

Okay, so I wanna try having a look at the openxcom source code to see if I can frankenstein 3x3 size units (or maybe even other sizes) into the game.

I guess I have two questions:
1. How hard is tinkering with the source code? (assume I have the necessary base knowledge)
2. Is 3x3 units just a dream I should give up on? I don't know if anyone has ever really tried before, but from what I've seen the game doesn't like it one bit.

Any form of help is appreciated :)

[Yankes]

adding 3x3 effective would be rewrite of whole battlespace code, every aspect will be touch like:
hit logic, path finding, unit moving, unit draw, craft cargo, unit placement on map.
2x2 code is already ugly in some places and 3x3 will be even more.

[Meridian]

1. on scale from 1 (trivial) to 10 (rocket science): 3
2. on scale from 1 (no) to 10 (yes): 9

[PIGEXPERT]

Alright, guess i'll just have a look and maybe tinker with the game a bit.
I should probably try to do something else before going for 3x3 units if its as difficult and janky as you say.

thanks, ill keep you posted if I somehow do find a way.