Which game should you download first?

Please save yourself comments like this you have to decide etc.:

Here are the games.

Fortnite
rb6
Cod mw (2019)
CSGO

Of course CS GO. Should be the smallest game, then you can already gamble while the rest continues to charge

I would do it alphabetically.

1Csgo 2 Fortnite 3Rb6 4 Cod mw (2019)
Everything else does not make sense.