There is no guide for this game yet. But apparently it is EASY POINTS! 

Action Camera Blast - 10 points

Unlocked when you trigger an Action Camera moment using an explosive

Action Camera Sniper  - 10 points

Unlocked when you get the headshot Action Camera

Action Camera Veteran  - 20 points

Unlocked when you get 10 of any kind of Action Camera (headshot or grenade or others)

Action Camera Hero - 40 points

Unlocked when you trigger 25 of any kind of action camera moment

A Lethal Portent - 10 points

Explore the abandoned hospital and Baker's fate...

Touchdown - 15 points

Clear the Landing Zone and rendezvous with Hartsock.

Objective SNAFU - 20 points

Fight your way to the bridge over the Wilhelmena Canal in Zon.

The Kloosterdreef Incident - 25 points

Battle through the streets of Eindhoven with the 506th.

Calling in the Cavalry - 30 points

Escort XXX Corps and link up with the 101st Airborne.

Hellfire - 35 points

Survive the bombing of Eindhoven.

Through the Looking Glass - 40 points

Explore the abandoned hospital and discover Baker's fate...

Weather the Storm - 45 points

Repel Kampfgruppe Walther's crushing attack on Veghel.

Situation FUBAR - 50 points

Defend Hell's Highway against the German counterattack.

Abandon All Hope - 150 points

Expel the German forces from Koevering and bring an end to Operation Market Garden.

First Recon - 10 points

Find and activate a Recon Point

Recon Bronze - 15 points

Find six Recon Points

Recon Silver - 20 points

Find twelve Recon Points

Recon Gold - 25 points

Find sixteen or more Recon Points

Kilroy was here! - 10 points

Find and view a hidden kilroy

Kilroy Bronze - 15 points

Find nine Kilroys

Kilroy Silver - 20 points

Find eighteen Kilroys

Kilroy Gold - 25 points

Find 25 or more Kilroys

The Draft - 0 points

Unlocked when you are joined by a friend in an online match

Earned in Blood - 0 points

Unlocked when your squad appoints you the leader for another round

Truly Inspired - 0 points

Unlocked when you win a match under a commander with the Earned in Blood achievement

Victory or Death - 0 points

Unlocked by killing someone who has the Truly Inspired achievement

Casual Capturer - 0 points

Unlocked after completing your first four player capture game

Novice Capturer - 0 points

Unlocked after completing five capture games (minimum four players per game)

Veteran Capturer - 0 points

Unlocked after completing 20 capture games (minimum four players per game)

Focused - 25 points

While connected to Xbox LIVE, play the game once a day for 7 days

Committed - 50 points

While connected to Xbox LIVE, play the game once a week for three months

Obsessive - 100 points

While connected to Xbox LIVE, play the game for once a day for 100 days

Remember September '44 - 50 points

While connected to Xbox LIVE, play the game on September 17th.

Secret Achievements

Assault! - 10 points

Ordered your squad to Assault the enemy 5 times

Bunker Buster - 10 points

Destroyed a sandbag emplacement with a bazooka team

Squad Kills - 10 points

Helped your squad earn 20 kills

The Four F's - 10 points

Used your squad to Suppress and Flank the enemy 10 times

Enemy Arms - 10 points

Captured and fired a German MG42

Basic Training - 10 points

Ordered your squad to fall-in, move and attack

Suppressive Fire - 10 points

Suppressed an enemy

Anti-Tank - 10 points

Destroyed an enemy tank

Tons of Fun - 10 points

Killed 5 enemies with the hull of a tank

Dig In! - 45 points

Killed 25 enemies while using cover