Here is the full list of all 21 Battlefield V achievements. It takes around 50-60 hours to unlock all of the achievements on Windows.
Earn 500,000 score as a Player
Earn 100,000 score as an Assault, Medic, Support and Recon
In Multiplayer, roadkill 5 enemies
Earn 150,000 score as a Player
In Multiplayer, kill 10 enemies with secondary weapons in a round
Play a round of Conquest on each of the launch maps
In Multiplayer, build 10 fortifications in a round
In Multiplayer, as a squad leader call in 2 reinforcements in a round
In Multiplayer, capture 10 flags in Frontlines
Complete the War Stories Under No Flag, Nordlys & Tirailleur on Medium
Complete the War Stories Under No Flag, Nordlys & Tirailleur on Hard
Complete the War Stories Under No Flag, Nordlys & Tirailleur on Hardcore
Complete Tirailleur War Story
Complete Nordlys War Story
Complete Under No Flag War Story
In Multiplayer, perform 10 squad revives
In Multiplayer, kill 30 enemies
In Multiplayer, fully suppress 5 enemies
In Multiplayer, get 10 kills in a round
In Multiplayer, have 3 squad members spawn on you
In Multiplayer, destroy 5 manned stationary weapons with a Airplane