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