*Note: I created the most of the tutorials using the Roboblitz and Gears of War editors. Based on the engine, and the version, some properties specified may be in slightly different locations than what is displayed in the screenshots.

If you need to learn how to create a basic map I would reccomend:
For UT99, UT2K3 & UT2K4: the Unreal Wiki.
For UT3: Waylon's Tutorials.



Comparison - Compare Bool




Comparing Booleans is a relatively simple affair and can make detecting yes/no situations in a level very simple.

The first step is generally to create a boolean value and set it to a default true or false state, and hook it into the compare via the connection node.

Now, whenever a signal enters the node, it checks to see what state the boolean reference (the boolean ball) is set to. If the boolean reference is set to true, the signal will continue out through the 'true' node. Likewise, if the boolean is false, the signal will continue out the 'false' node.

Combining some 'Set Boolean' actions with the compare bool action is a great way to get a simple 'yes/n' answer to whether something is or has happened in the level, and then spit out a result that can then trigger other actions.

In the image below, the boolean is currently set to false, so any signal entering the compare would exit through the false node.