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