These kinda bonus/cheats/boosts shouldn't be given out this way.
It makes for an odd gameplay experience, especially when theyre given to you straight from the off , ike Deus Ex HR -
"Okay Adam, you want to go lethal? or non-lethal? Great, Close quarters? or Long Ranger, brilliant. Get the job done. On and wait, here's a shotgun and sniper rifle for no reason. Hey take 10k credits as well to unbalance the begining of the game.

"
They should be worked into the game naturally.