lesson 2 creating in udk

 to create a box click the box in the brushes tab and then click the top left button in the CSG tab to create geometry.

 to subtract geometry drag you creation box over the existing geometry and click the top right button in the CSG tab, this will take away the geometry the box is over and create a subtract box which is yellow.

to change the builder brushes size right click the builder brush and change the X and Y sizes.

to change into edit geometry all you have to do is click the transparent cube at the top right of the tool bar located on the left side of the screen.

to create a light source for the environment press and hold ctrl + L and then left click to produce the light, because the scene is now lit anything out of the lights range will become dark.
to change back into unlit mode click the button indicated as a glowing blue cube located 5 icons  in from the left above your selected window.

to play the level with out a spawn point right click the window and click force play, remember to press the 3 build buttons, these update the what you have changed in the level and forgetting to press them will leave your character in a dark space.

far left is build geometry, middle is build lighting and far right is build paths which are spawn points and anything that falls under that category.

to create a player spawn point right click the window and press create actor, from here click player start point which will bring up a control stick like the one in the image above.
move the control stick just make sure your not to close to a wall or a error will appear.

to play the level with the same proamitors as unreal tournament all you have to do is go into the world properties and go into the game style tab, once in this tab change default game type and game pie to UT game.