Here is the full list of all 34 Border Force achievements.
Complete Day Six of the Campaign
In the campaign, catch a runaway chicken.
Complete Day Five of the Campaign
Complete Day Four of the Campaign
Complete Day Three of the Campaign
Complete Day Two of the Campaign
Complete Day One of the Campaign
In the campaign, throw an EU passport into the skip.
In the campaign, throw a UK passport into the skip.
Complete the Tutorial
In the campaign, deny a vehicle entry into the United Kingdom.
In the campaign, grant a vehicle entry into the United Kingdom.
Complete Day Seven of the Campaign
Complete Day Eight of the Campaign
Complete Day Nine of the Campaign
Complete the campaign. Welcome to British Independence.
Dispose of 10 cheesewheels.
Finish day one of the US/Mexico campaign.
Finish day two of the US/Mexico campaign in 1st place.
Finish day three of the US/Mexico campaign.
Finish day four of the US/Mexico campaign.
...
Finish a round of Border Force in multiplayer on the US/Mexico checkpoint.
Finish day one of the Space Force campaign.
Finish day two of the Space Force Campaign.
Finish day three of the Space Force campaign.
Finish day four of the Space Force campaign.
Finish day five of the Space Force campaign.
Finish day six of the Space Force campaign.
Finish day seven of the Space Force campaign.
Finish the Space Force campaign.
I go in, I throw trash...
Make a peace offering to the new Glorious Leader.
Pass through the Trashgate.