*Spoiler below*Hello and welcome to my guide. First off the other two guides here are very good and contain valuable information. In my guide I will touch on some very good shortcuts that will make this hard line play through a breeze!!!
First as you may know you must play at least "officer" difficulty to unlock "hardline" difficulty. During this play through I highly recommend that you obtain all evidence and arrest all suspects with warrants!! If you do this you can breeze through the hardline play through because you can kill or skip enemies and you will not need to search for evidence in enemy populated areas!
Now once you played through and unlocked "hardline" difficulty select the prologue and play it....then select "hardline" difficulty.
Now for the shortcuts I mentioned earlier.
Always carry a grappling hook when you can!! This will allow you to shoot it on rooftops and avoid enemies on certain levels! More on that below! Also make sure all your weapons have a silencer on them ( I used the m16)
On episode 3 when you reach the stadium, you can use the grapple hook on the far left hand side of the stadium and skip all the enemies by avoiding them.
On episode 4 when you reach the warehouse you can run all the way to the left side of the map on the road and shoot the grappling hook up to the rooftop....kill the enemy near where you climb up and jump off the roof and on to the staircase....then open the door....you just avoided 90% of the enemies outside!
Click for a video guide
Battlefield hardline episode 4 shortcut !!:
On episode 9 you should equip c4 and the gas mask....when you start drilling the vault you can drop the c4 near the desks and retreat to the balcony. Remember the windows are bulletproof!!! Use that to your advantage and hide behind them. Because you have the gas mask you will not be hurt by the gas grenades and I found that when equipped the enemies will NOT toss fire grenades.
When the enemies approach your c4 trigger it....you will need to shoot at one enemy to get them to that area.
Also you can lay down and crouch behind the glass on the balcony if you get hurt bad....Kai will toss health as well.
This next trick is by far my greatest tip in this guide!!!!
In episode 10 you will approach the beach and 2 enemies...kill them or arrest them... Walk to the left where the shoreline is and you will see one enemy on the dock, kill him....now jump into the water and swim all the way around the water bungelows and keep swimming until you see a wood dock....walk up the path and look for the two enemies near the side of the cliff..... This is referred to as the cliff shortcut!
You will kill them and then use the grapple hook twice, once at the top kill the enemy and then walk to the left...hop into the waterfall and over the rocks....line up the enemy through the glass and shoot.... Next walk up to the door and you will cutscene kill Dawes! YOU JUST BEAT THE LAST LEVEL IN ABOUT 5 MINUTES ON HARDLINE!
Below is a video I made for you in case you find it easier to watch the method for episode 10.
Episode 10 Shortcut battlefield hardline !!!:
Please feel free to leave feedback, questions, or comments below, thank you and good luck!