Payday 2 no Mercy (hospital)?

I have ordered the game Payday 2 For Ps4. There's a mode called no mercy, so there's a raid on the hospital, I have 3 questions.

you can also do it offline
can you play it alone
Can you do that right at the beginning

Good evening

1. Yes, with bots

2. No, you always have your 3 bot colleagues with you

3. Yes and no. You need enough money in the offshore account, then you can buy it and play it at any time.

The No Mercy Heist is not available in the console version.