@account777: pictures show Future Terminators, so they have access to plasma rifles...it is their standard equipment in the lore they don't always fight unarmed.
Yes and No.
No, its just a pic he put in the OP of T-800's.... doesn't necessarily mean that's the version being used. Also that pic was taken from TERMINATOR 3 From Johns Dream he was having. That wasn't the actual future war. Just a dream John had.