Definitely NOT Dominion
The most frustrating thing about this game mode is that the majority of teams I'm matched with.....just refuse to play it correctly. Spending all their time in the jungle going after the stupid storm and relic buffs, and largely ignoring the top turret. I've tried communicating with teams, and either get ignored or raged at. Even had several people give the excuse of "but I don't care about winning the game, I just want kills." Sigh.
The game queue for the Rift gives players an idea of what they typically "should" be doing on the map. People largely understand the 1/1/2 lane concept, with one jungler. The same formula applies, just the numbers change to 3to4 in the same lane and 2to1 junglers at any given time. Perhaps some similar guidance for the Def Not Dom map would help? Too often I'm getting the equivalent of me going mid lane against 3 enemy players, and the rest of my team being four junglers.....which is a strategy I've never seen work in any League game mode.