There are 2 things that players MUST have. One is a better map than the default one that comes with the game. Please check our Maps section for the best RK map in the universe (no joke). We'll soon be hosting the everpopular (and uber) spheremap v1.0 for shadowlands.
The second thing (if you have AI expansion) is knowing how to raid in a city. I've seen a LOT of raids go down the drain lately due to lack of knowing exactly what to do. Check our AI section where we have a guide on AI raiding.
A team is as good as it's weakest link, be informed and prepared, that way you can enjoy killing aliens and know how to get to the city it's being hosted.
Oh and don't forget our Guides Search Function if you're looking for other guides.