When you start the SP game, you have enough credits to buy better weps... Don't just go with 2 justice mk 1 to kill npcs lol It's like taking a wep with no damage, and saying "hey I can't do anything" when others 1 hit kill those NPCs
Well, going by Custodian in New York, to the systems arround X3043, like arena or nephele which has all vanilla guns, even the cheap ones at 115 $ which you can get at the last missions Then you come back with a better setup There are low lvl guns too, for your starflier
It doesn't really take so much time if you hurry But the time you spend in achieving it is the time in which you have fun, don't spoil by skipping it with cheats and such.
No, no, for easy money, nearly instant, go loot the wrecks in Bad Lands, there are images of their location even on google as they're since vanilla. You will need several trips, and the Cardmine is sold very well on Manhattan
Yes, they will have to grind, go for the wrecks in other systems is known as wreck grinding Especially those nice powerful MK and MK II codename weapons, are sold nicely And they come in pair/wreck.