Okay

The information is so limited that I was done with it less than half an hour after I got it. There are many grammar mistakes and the creator does not seem to have wanted users to have a good time using the app. Maybe you should try using a smaller font, double-checking what you had written, and change the "Halo 4" to the font it is at in the video game.
Much more information is needed, along with much more categories to choose from, i.e. history, Master Chief, Cortana, Captain Del Rio and other members of UNSC Infinity, the Covenant soldier types, skulls.
I also noticed there were several vehicles missing, including the pelican, the forerunner sky towers (I guess they could fit in that category as "extra"), and three other Covenant ships.

Frastdsdszf about The Ultimate Guide - Halo 4 Edition