what do GP and TD stand for?

GP stands for Game Points.
TD stands for Team Damage.
Afaik GP were introduced with OSP for RtCW.
Here a section from the OSP-Docs (file osp-wolf-StatsInfo.txt):
End of Game Stats displayed in the console:
-------------------------------------------
After a round/match, the following information is dumped in the console:
TEAM Player Kll Dth Sui TK Eff GP DG DR TD Score
---------------------------------------------------------------------
Allies a|rhea 6 2 1 0 67 45 0 0 0 48
---------------------------------------------------------------------
Allies Totals 6 2 1 0 67 45 0 0 0 48
For each team, each member of the team will have their stats given at the
end of a round/match. The team's total's is simply a summation of all the
stats of the team members.
Kll: Total number of killed enemies
Dth: Total number of deaths caused by enemies
Sui: Total number of suicides
TK: Total number of Team Kills
Eff: Overall Kill/Death efficiency: Kll/(Kll + Dth)
GP: Game Points (bonuses scored): Score - Kll
DG: Total damage given
DR: Total damage received
TD: Total damage inflicted on teammates
Game Points in OSP were also effected by things like the Binoc Pickups, Ammount of Health/Ammo others pick up of yours, Ammount of revives, Dyna plants and defuses and a few other bits… 
As stated in osp-wolf-StatsInfo.txt: Game Points = Score - Kll. The Game Points are calculated by subtracting the points for your killls from your overall score. So when you get points for revives, plants etc. these will add to your Game Points.
Now I’m confused… I played one round last night to check it out and my “GP” was negative! If GP = Score - Kll, my GP in the game below should be… 141!! Not “-2”
Rank: Corporal (182 XP)
Skills Level/Points Medals
-----------------------------------
Battle Sense 2 (61/90) 0
Engineering 2 (80/90) 1
Light Weapons 1 (35/50) 0
Heavy Weapons 0 (6/20) 0
TEAM Player Kll Dth Sui TK Eff GP DG DR TD Score
---------------------------------------------------------------------
Axis /o/D34thBl0w/o/ 28 14 7 2 66 -4 6130 2379 350 429
Axis D+S|SuperNaut 22 12 1 2 64 0 3578 1772 675 351
Axis **Yuna** 16 9 1 1 64 10 3780 1397 228 305
Axis Rdepine 24 14 0 1 63 5 3157 3305 108 231
Axis SyncMaster 11 10 0 0 52 0 1930 2381 147 168
Axis [RaideN] 4 12 0 2 25 3 784 2127 241 49
Axis MINAS_SUCKS 0 1 0 0 0 0 0 278 68 0
---------------------------------------------------------------------
Axis Totals 105 72 9 8 59 14 19359 13639 1817 119
TEAM Player Kll Dth Sui TK Eff GP DG DR TD Score
---------------------------------------------------------------------
Allies MeNiNaMaH 4 14 0 0 22 11 985 2545 0 425
Allies IP.Gohan 20 16 1 2 55 9 2838 2963 237 404
Allies BRADOC 13 17 0 1 43 16 2110 3933 18 281
Allies -=F-B=-Wild 10 11 0 0 47 16 1922 2002 58 224
Allies ANABOLIZANTE 5 8 0 0 38 0 702 1657 18 200
Allies /o/Keyser/o/ 15 15 1 2 50 -2 2927 3173 478 182 :???:
Allies xixi to comecle 8 14 1 0 36 0 1888 2616 36 108
Allies P9[<0>]CAMPANEL 2 0 0 0 100 0 260 18 0 6
---------------------------------------------------------------------
Allies Totals 77 95 3 5 44 50 13632 18907 845 127
Gah, GP is a leftover from RTCW. Don’t expect it to make sense. You probably get -1 GP for suicide and -3 for TKs. Or something like that…