Invisible to the enemy and blow up once stepped on by an enemy unit. Leave the area ablaze in fire for a while after blown up. Enemy units not showing In my current playthrough of hungary i invaded yugoslavia, however when i was invading i couldnt see any of the icons for their units like i could with mine. Im not sure if this was in the latest patch or if its a bug as i can see whats in the province when i hover over it.

Check out this guide about the Arknights' Story Operation 3-7 Roar! Know the mission info, map layout, enemy list, how to clear the mission and get 3 stars, and more!

Check Out The Story Mission List Here

Table of Contents

3-7 Roar Mission - Overview

3-7 Mission Overview

Required Sanity	15
Recommended	Elite 1 Level 25
Placement Limit	8
Total Enemies	61

3-7 Roar Mission - Map

Click to Enlarge

Special Map Feature

Roadblock	Deploy it to block the enemy's advance.
Detector	Once activated, it will reveal nearby invisible enemies for a period of time.

3-7 Roar Mission - Enemies

Enemy Type	HP	ATK	DEF	RES
Mortar Gunner	C	B	C	D
Heavy Defender Leader	A	B	A	D
Lurker	C	C	D	C
Invisible Caster	C	C	D	A
Logger	B	A	D	B
Veteran Logger	A	A	D	B

Video Guide & Team Composition

3-7 Roar Mission Video Guide

Recommended Team Composition

Vanguard	Guard	Defender	Medic
Sniper	Sniper	Caster	Caster

Check Out All Operators Here!

3-7 Roar Mission - Tips To Win

Set The Roadblocks Immediately

Click to Enlarge

While you can place 8 Roadblocks, you only need 3 to divert the enemy lanes. Place the 3 Roadblocks after setting a Vanguard.

Deploy AoE Attackers

As you will be using Roadblocks to diver the flow of enemy waves, you can make use of AoE damagers to easily deal with the enemy mobs.

No Need To Use The Detector

As you can control the pathing of enemy waves, there is no need to use the Detector to hit stealth units. You can simply use Defenders and wait for these invisible units to come, then hit them with ranged Operators.

Deal With The Mortar Gunner

Click to Enlarge

The lower right enemy camp will spawn a Mortar Gunner, a long-range high ATK enemy unit. Leaving it as is can devastate your defenses, so bring a low-cost Operator and set it directly on the Mortar Gunner's tile to stop its attack.

Bring Reserve Casters

The latter waves will spawn Heavy Defender Leaders, units that have exceptional HP and DEF but mediocre RES. Bring spare Casters to deal with this late-game threat should your usual lineup be insufficient.

Story Progression
<< 3-6	3-7	3-8 >>

Arknights Related Articles

Operator Tier List

Best Operator Tier List	Best Low Rarity Units
How to Get Operators	Reroll Guide

Basics for Beginners

Check Out the Beginner Guide & Tips

Gameplay & Battle Tips

Early Game Guide	Daily Routine
Combat System	Base & Facilities
Operator Class Types	Operator Base Skills
Level Up Fast	Elite Promotions
Raise Potential	Trust Levels
Upgrade Operator Skills	Open Recruitment Guide
Increase Doctor Levels	Recruitment Simulator

Game System & Features

Friend System	Auto Battle
Store & Purchases	Recommended Packs
Link & Backup	-

Items and Materials Articles

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Intro

In this video I will cover several Infantry Division Layouts from World War II. Although certain parts of the content is tailored for Hearts of Iron players most of the information is military history, only the initial remarks are mostly Hearts of Iron and methodology specific, so just skip ahead on click on the annotation on the screen.

Hearts of Iron IV

Be aware though that these layouts are aimed at being as historical as possible within the Hearts of Iron division builder, thus I am not sure how well they work in HOI 4. This is first and foremost a military history channel, thus I am mainly here for the historical flavor, the German accent and not to support your ambitions in conquering the world, at least for now.
I won’t use the division builder, since I generally try to avoid any copyrighted material and it would actually make everything more complicated and time-consuming. Yet, you will get in one shot the proposed HOI 4 setup and the historical setup together, so you can basically copy it and also learn a bit about the real units too. On the homepage, you can find the proper high resolution screenshots of these layouts see the link on screen and in the description.

Methodology & Accuracy

Some words about methodology and accuracy, if you want to discuss these layout listen to this section very carefully and if you can’t wait for the layouts, you might skip ahead by clicking the button on screen.

Well, figuring out the correct layouts can be quite complicated. Here are a few reason why. You need to be aware that some divisions – especially tank divisions – changed quite considerably throughout the war, thus I usually provide a date for each layout. Another major pitfall is the naming, what one country called a regiment was sometimes something different in another, thus this it was not as straightforward as it seems. Also there were even quite some difference within each country, e.g., a German tank division in 1939 had way more tanks than in 1941, or an US Army Battalion in 1942 was usually larger than an US Army Battalion after the reorganization of September 1943, well, except for two divisions of sixteen armored divisions.
Hence my approach was as follows, it consisted of looking at the data in hearts of Iron, checking the historical division layouts then compare these information to equipment and manpower tables to see if the numbers match for different units.

This process revealed quite some interesting information about hearts of Iron too. First I looked at the data of Hearts of Iron, namely how many manpower and equipment each unit had. This confirmed my assumption that the so called support companies are more like support battalions, only the three smallest ones the engineer, AA and artillery company have 300 men, the others have 400 or even 500 men. Whereas companies were usually around 100 to 200 men. Furthermore, the number of artillery guns for an artillery battalion in game is 36, whereas in real life this was the number of three battalions at least for the German and US Army Infantry division. I don’t know if this is an error on behalf of paradox or if an artillery battalion in game actually should represent a regiment or maybe it is for gameplay balancing reasons. For this video I assume that an artillery battalion in game, is also an artillery battalion historically, if this is not the case, just divide the number of proposed artillery battalions by 3 and you should be fine.

The second step was to look at the organization of these units and the third step was to look at the number of equipment tables and compare if it matches the organization, because the organization can sometimes be misleading. As an example. although an US Army infantry division didn’t have a dedicated anti-tank battalion like a German infantry division, but it had 57 anti-tank guns whereas the German division had only a few more with 75, but some these were also part

Hoi4 Enemy Units Invisible