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