Base Defense is a single/cooperative modification based on horde-style and RPG systems. It's awesome, you should try it ;)
Task menu was updated to be more informative. It has turned off state and 3 pages. You can choose to show only the main task or scroll through other goals. The first page is basic information about your main task. The second one is the same, but it's extended with current event information (only if it's present, if not then it will skip page to the next one). The third page shows necessary kills for rare weapon drops. I guess that some players might not know about these.
Cool
Simple but does the job! As it should be.