Here is the full list of all 53 First Strike: Final Hour achievements.
Won twice playing as North Korea!
Unlocked all Superweapons!
Occupied all of Oceania!
Won against 10 opponents!
Played as Iran
Won as Iran
Won twice as India & Pakistan!
Played as South Africa
Won with South Africa
Played as North Korea
Won with North Korea
Beat Hardcore Mode with USA
Won against 9 opponents!
Played as India & Pakistan
Won with India & Pakistan
Won against 8 opponents!
Played more than 10 games!
Played as China
Won with China
Won twice playing as Europe!
Won twice as Russia!
Played as Europe
Won with Europe
Occupied all of Africa!
Play as Russia
Won with Russia
Played as Brazil
Won with Brazil
Won twice playing as the USA!
Achieved World Peace!
Played as the USA
Won with the USA
Occupied all of South America!
Won with every Nation!
Deciphered end message!
Played more than 20 games!
Played more than 50 games!
Played as Israel
Won with Israel
Played as Australia
Won with Australia
Beat Hardcore Mode with Europe
Beat Hardcore Mode with North Korea
Beat Hardcore Mode with Russia
Beat Hardcore Mode with India
Beat Hardcore Mode with Israel
Beat Hardcore Mode with China
Beat Hardcore Mode with Iran
Beat Hardcore Mode with Brazil
Beat Hardcore Mode with South Africa
Beat Hardcore Mode with Australia
Beat Hardcore Mode with Kazakhstan
Beat Hardcore Mode with every Superpower!