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