Those models aren't very good. It looks like all you did was take the Halo models and add some kind of widget on the front and call them "yours".
1] Somekind of pistol
2] is just a flame thrower with the chaingun
3] Rocket with a scope
4] Sniper with a round scope
5] Shotgun with a drum magazine
6] Magnums from Halo 2 with something on the front
7] AR with sliencer, laser sight, and a scope
8] A poorly done sword.
So no only 2 of these models are "yours."
As to getting them ingame, there are tutorials everywhere on this, try lookin around, but since you to lazy to do that, heres a link to some great ones.
http://ghost.halomaps.org
Just go to tutorials.