Proceural Programming vs. Object Oriented Programming

[User137]

Unit types are like this:
1. Land unit capable of atacking other land units
2. Land unit capable of atacking air units
3. Air unit capable of atacking other air units
4. Air unit capable of atacking land units
5. Air units capable of atacking submersible units
6. Naval units capable of atacking other naval units
7. Naval units capable of atacking submersible units
8. Submersible units capable of atacking other submersible units
9. Submersible units capable of atacking naval units
10. Submersible units capable of atacking land units.

Your code also need to make sure that these units can move properly (prevent ilegal moves)
1. Land units can move only on land
2. Naval units can move only on water
3. Submersible units can only move in deep water when submerged
4. Air units can move anywhere

I do not see how this couldn't be done in non-OOP way very easily. Anything that programmer tries to justify by objects, the non-OOP programmer can explain with pointers. Your list of 1-10 is irrelevant, your unit can simply have like:

unit: array of TUnit; // TUnit record containing all different kinds of units, and target indexes

Movement can simply be a comparison between unit type variable and land grid at its location.

I mean, the example above is hardly enough to light up a "war" between the approaches, as it is too simplistic