Are you tired of single player mode
because you cant get high enough to get on top of places? Well
I have an easy solution. All you need is a substitute. Examples would be flood
and marines.
Its very simple. Do you know you can only get on top of Keyes level on
multiplayer? well now you can up there on single player. It is easy to use.
All you have to do is with a machine gun shoot off the flood warriors arms
without killing them. Now they cant hurt you but follow you everywhere. setup
the multiplayer jump (jump on top of the flood and throw a plasma grenade on his
head and get ready to jump) this is very useful