You can check out Hostile.Warfare and Hostile.TakeOver, both part of the same family. Both squads war 2x a week, although several players only war once a week. Hostile.Warfare wars at a time more friendly to those in US/Canada (9pm or 9:30pm EST); Hostile.TakeOver is a bit more friendly to European players (4pm EST, give or take a bit). Movement of players between the squads is common, so you don't have to choose just one, although many prefer one start time over the other. Both squads use and require LINE.
If interested, I can add you to our joint chat room on LINE so you see if you think we are a good match; just send a message to paper-tiger on LINE and I'll add you. Or you can pop into either squad if you would rather.
In game name: Paper Tiger
Line ID: paper-tiger