Devpick 1v1
You spawn with all the weapons but lowish ammo, everything else is the same. That would hopefully get some newer people into duel, or at least try it :>
Don't think that would make a difference. Weapons aren't the thing that people have difficulty with in duels. If they put spectator timers up for lower tier players that would probably help get them more into it
Pretty sure the best way to get the console gamers were some sort of all weapon isntagib-ish* mode with aforementioned achievements. People need their freefrags to feel good.
*As in 2 bad rocket splashes or string of 4 lg "beads" means a kill.
The whole +10 score thing or +whatever when you get streaks whatever kinda is there. Afterall, when you get a kill a little 1 pops up above the kill, flag little +100 pops, suicide -1 etc