These two challenges are very difficult to complete together, as they are both related to the final event with the lord. The main difficulty is the need to go through the event solo, as bots or other players can easily fail the conditions of the challenges. However, on the positive side, there are no restrictions on difficulty level, so for convenience, choose the “Recruit”.

There are many guides for these challenges on the internet, but keep in mind that most of them were created before the explosive barrel bug was fixed, which was damage both bots and the player on the “Recruit”. Fortunately, there is a new method to replace the barrel trick.
https://youtu.be/RPhpOagE9FM

Before starting the map, you need to connect Twitch mode. To vote on your own outcomes, install the program Vermintwitch.[github.com]
And set the settings to 90/90/100%, blessings and weekly events disabled.

As for the choice of hero and build, everything is quite standard: Huntsman and build through the blunderbuss.

For killing off bots before the final, pick squishy careers with 100-125 HP base health and take everything off of them. For example, like the picture:

引用自 Astralstep：

The simple way to kill the bots on recruit is to get a friend, select class like slayer or bw and suicide on spawn, leave the game and reconnect to your friend.

https://www.youtube.com/watch?v=Hd5uI370OrE


Next, we simply play through the map. Be sure to pick up all the tomes & grimoires and give them to the bots, as it will make it much easier for us at the end. If you forget or don't know the location of the tomes and grimoires on this map, check out this video:
https://www.youtube.com/watch?v=ZsGdXQHnaYE
Once you get to the final, in settings Twitch mode, change to 15/5/199% This way you can summon of monsters, specials, and elites which would proceed to bash the of the bots. Once they all are downed/disabled, change to 90/90/100% and enable blessings again.
I also recommend climbing up on the windowsill to keep enemies from bothering you.

1. Standing behind the top right pillar, you won't get hit by flies and can safely dodge from "fire rings".
2. Don't stand too close to the pillar. The explosion of the flies deals AOE damage.
3. DO NOT PUSH ENEMIES.
4. DO NOT THROW THE BOMB AT THE LORD.
5. Remember to move closer to the center in 3rd phase to avoid getting hit by the “fire ring”.
6. Use Active Reload on the Blunderbuss and Invis while dealing damage to the lord.
7. In the last 3rd phase, drink the potion and kill the lord.

If you have done everything correctly, you will see a message in chat that the challenge was successful. If you fail one of the two challenges, focus on the conditions of the other and complete it. You will only have one challenge to complete later, which will make it much easier.

More details about the strategy and the battle with the lord are written in this guide. It is still actual, except for the moment with the barrel. https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=2573976427&searchtext=Achievement

You can find the rest of the challenges for this map in this guide.
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=3264185268