Found these looking around in the debugger... Im guessing these are the game modes and maps to come?
GAME MODES:
sab = Sabotage?
dom = Domination
koth = ?
dd = ?
siege = ?
mtdm = ?
tjugg = ?
jugg = ?
gun = Gungame?
oic = ?
mugger = ?
aliens = ?
ctf = Capture the flag?
bnty = Bounty?
dm = Free for All
war = Team Deathmatch
sd = Search and Destroy
conf = Kill Confirmed
tdef = Team Defender?
grnd = grind
infect = Infected
blitz = Blitz
sr = Search and Rescue
grind = Grind
cranked = Cranked
sotf = Hunted
sotf_ffa = Hunted FFA
horde = Safeguard

MAPS:
mp_london
mp_prague
mp_plaza
mp_black_ice
mp_Clockwork
mp_Cornered
mp_enemyhq
mp_factory flood
mp_homecoming
mp_Las_vegas
mp_oilrocks
mp_satfarm
mp_prisonbreak = Prison Break
mp_dart = Octane
mp_lonestar = Tremor
mp_frag = Freight
mp_snow = whiteout
mp_fahrenheit = Stormfront
mp_hashima = Siege
mp_warhawk = Warhawk
mp_sovereign = Sovereign
mp_zebra = Overlord
mp_skeleton = Stonehaven
mp_chasm = Chasm
mp_flooded = Flooded
mp_strikezone = Strikezone
Let Me know what you think some of these could be. Obviously jug has something to do with a jugg