Well the MP should work like any other title. The problem is with the community of the game you are playing. The reason why COD:Advanced Warfare has so much lag is due to the rage-quitters and lobby-hoppers. If a guy is host he has a small advantage over the rest, if he starts loosing he quits and forces a new host to get picked, it's very frustrating and causes lag because 90% of the hosts that are picked can't handle the lobby.

Rainbow Six Siege should work the same way, seeing as it is a Ubisoft game, but there should be lobbies like Crysis 3 and games that you can set up properly, not just join and play what they give you. I could be wrong however, Ubisoft is prone to selling out, so only time will tell.

The Destiny community is made up of more like-minded people. The game has a massive grind, and there are still moaners about every decision Bungie makes, but if you like great gun-play, minimal story, good pvp, grinding for gear, learning tactics for raids, and just shooting stuff, then Destiny is for you. You will replay a lot of missions and strikes and visit many places again and again, but for me I don't mind it, Bungie gives you just enough to keep you playing. Join a clan and learn from them, there are many on bungie.net. New DLC releases the 19th of May as well so go check out some vids on youtube about Destiny. I played it for 4 straight months, took a break from it for GTA Online, and I am back on Destiny again. That's how addictive it can be and how good the gun-play is.