Im so surprised that this topic has recieved such a big response. I really hope that people who have the same problem I had with this game will take into account the tips that have been provided. The best tip that I have found on this topic is to use the promethean weapons and hide a lot. Theank you everyony who replies to this topic!
The story of Halo 4 is about him not being a machine, seeing his face is in a way reminding us that. Because in the previous games we never saw any of him and it kind of takes away the humanity of Chief.
Some of the things that Cortana says and the part in the story where she "touches" his armor, it seems a little to me like it has undertones of love-not friend love- in it.