Just a warning if you don't have R6 Siege already. Don't buy the starter edition. It's really cheap (currently on sale for about $10) but it's rubbish. In the normal edition it takes about 2-4 games (about 20 - 40 minutes play time) to unlock an extra operator and less than 1 game to unlock weapon upgrades. In the starter edition it takes about 20 - 40 games to unlock 1 operator.
The options you have are:
Starter edition (Current on sale for $9.97 on Ubisoft store for PC version):
Gives you two operators at random. It's a really, really long grind to unlock more operators and weapon upgrades
Standard edition (Current on sale for $29.97 on Ubisoft store for PC version):
The good one. Watch 3 short tutorial videos at the start and that'll give you enough renown (currency) to unlock your first operator. It's about 500 for your first operator then it goes up slowly from there. The most you pay for the base operators is 2,500. You can also start watching the videos then skip them and you still get the renown. Play all the single player missions and you'll unlock many more operators. The standard edition doesn't include the Season 1 or Season 2 operators. You can still unlock these operators with renown but it costs about 25,000 renown for each season pass operator which is a lot of play time.
Complete edition (Current on sale for $64.97 on Ubisoft store for PC version):
Same as the standard edition but comes with instant access to all bonus season 1 and season 2 operators (8 season one operators and 5 season two operators with 3 more season two operators to be released soon). The base operators are still unlocked via the renown system (500 - 2,500 renown)
Year 2 edition (Current on sale for $49.97 on Ubisoft store for PC version):
Same as standard edition but comes with access to the season 2 operators (no season 1 operators)