Need some help with abbreviations

Hello, lads, i'm new on forum, not very expierenced player in CoH2, and besides, i'm from Russia, so that's why i don't understand abbreviations you all use in discussions. For example, i know what means MG (Machine Gun) and AT (Anti-tank, right?), but i don't know what is KT, EC and etc, ect...
Can you write abbreviations meanings, please? And sorry for bad english. Thank you

The most common ones off the top of my head:
T1/T2/etc. = Tier 1, Tier 2, etc.
BP = BattlePhase (Ostheer tech)
HQ = Headquarters

KT = King Tiger (Tiger II)
ST = SturmTiger
JT = JagdTiger
JLI = Jaeger Light Infantry
IS = Infantry Sections
RET = Rear Echelon Troops (USF engineers)
RE = Royal Engineers (UKF engineers)
CE = Combat Engineer (SOV engineers)
SP = SturmPioneers (OKW engineers)
VG = Volksgrenadiers
PG = PanzerGrenadiers
P4 = Panzer IV
JP4 = Jagdpanzer IV
P5 = Panzer V Panther
CP5 = Command Panzer V Panther
UC = Universal Carrier
FF = FireFly
LT = Lieutenant (USF tech)
CAP = Captain (USF tech)
(S)CAS = (Stuka) Close Air Support
EZ8 = Sherman "Easy Eight" (M4A3E8)
AE = Assault Engineers


Cons = Conscripts
Rifles = Riflemen
Grens = Grenadiers
Pios = Pioneers (Ostheer engineers)
Assgrens = Assault Grenadiers
Tommies = Infantry Sections
Paras = Paratroopers
Obers = Obersoldaten
Pfussies = Panzerfusiliers
Falls = Fallschirmjeager
Katy = Katyusha
Stuka = Walking Stuka (OKW rocket arty)
222 = Sd.kfz.222 Scout Car (Ostheer), 444/666 = two or three 222s (multiplied)
Scott = M8 Scott (USF howitzer tank)
M3 / clown car = M3 Scout Car (Soviets)
Werfer/Pwerfer = Panzerwerfer (OST rocket arty)

LMG = Light Machine Gun (on infantry squads)
HMG = Heavy Machine Gun (team weapons)
ATG = Anti-Tank Gun
AR = Assault Rifle
SMG = SubMachine Gun

AI = Anti-Infantry
AT = Anti-Tank
DPS/DPM = Damage Per Second/Minute
CQC = Close Quarters Combat
Arty = Artillery