I have now done some runs and have some thoughts on the timings

RTA starts when the ADA Log is dismissed and ends on the same frame as IGT

If you are fast enough there is a possibility to place something before the ADA Log pops up. The current rules state that "Time starts when the player gains control over unit placement". This is a bit ambiguous because technically you have control before the ADA log pops up.

There is a similar issue with the end time. Because there are levels (at least Farside afaik) where you can click rift jump before the final dialogue comes up. Therefore saving some time because you can skip the final dialogue. However, even if you rift jump before the dialogue the IGT will pause but if you dismiss the dialogue after it will add another couple seconds to it because it unpauses before it registers that the map is completed.

EDIT: I realised I just pointed out some flaws without suggesting some solutions.

For the start timing, my suggestion would be start the moment the level is done loading, or after closing the ADA but having a rule that you cannot do anything before that.

For the end timing keep it as is such that both RTA and IGT are counted from the moment rift jump is clicked.

I made separate categories for IGT and RTA because I think they're interesting as separate disciplines. If they're the same category do you lose the ability to have a Victor for each method of play, or can you filter for both?

I agree with the separate categories. So far playing for IGT is completely different than for RTA because pausing becomes way more important for IGT. There was also a discussion about this in the CW4 discord last night.

Currently, the IGT categories are still ranked by RTA in the LB so that probably needs to be changed.

Lastly, I had an idea for a "full run" category and that is for a demo run. The demo for CW4 is just the first five levels (09 Leo, 266 - Ruins Repurposed). Having this as a category would both work as a middle ground for people who do not want to commit to a whole run but do want to run multiple levels, as well as allowing people who have not bought the game to participate.

I only recently started doing some speedruns of Creep world 4 with a friend and we are wondering if getting the easter egg in Farside should be needed for the 100% run?

The main argument for including the easter egg is that is is a part of the map and has its own steam achievement. However, the easter egg is completely unnecessary to complete the map and is not an objective.

The same would go for the easter egg in 'before time'.