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