ASRD Tips & Tricks – Alien Swarm: Reactive Drop

ASRD Tips & Tricks – Alien Swarm: Reactive Drop 1 -
ASRD Tips & Tricks – Alien Swarm: Reactive Drop 1 -

Item values and comparisons

Damage Amp

The Damage Amp follows Special Weapons characters when activated, acting as a mobile damage aura, but remains stationary like a traditional beacon when activated by other characters.

Wildcat V. Wolfe: Piercing Bullets

Each point in Piercing Bullets increases the chance a bullet will penetrate it’s target. Whether this means that a bullet only has a chance to penetrate it’s initial target, or that it has a chance to penetrate every target it hits is unclear and needs further testing, but after penetrating two targets the probability of penetrating a third target (one bullet hitting 4 enemies) is negligible:

  • One bullet hitting 2 enemies: 40% chance
  • One bullet hitting 3 enemies: 16% chance (If possible)
  • One bullet hitting 4 enemies: >1% chance (If possible)


  • One bullet hitting 2 enemies: 60% chance
  • One bullet hitting 3 enemies: 36% chance (If possible)
  • One bullet hitting 4 enemies: >1% chance (If possible)


Gun Comparison

Autogun⁴: Wolfe120 (192)115 (184)6,000 (9,600)
Minigun⁵: Wolfe260 (416)249 (399)13,000 (20,800)
PDWs: Wildcat440 (616)391 (547)12,320 (17,240)
GL⁶: Jaeger1,128 (1,488)752 (992)9,024 (11,904)
Devestator⁷: Wildcat525 (735)490 (686)14,700 (20,580)
Heavy AR: Wildcat198 (277)187 (262)10,584 (14,817)
Chainsaw⁸: Vegas495n/an/a

¹. All table values in parenthesis consider the additional damage on average of penetrating bullets and explosive area damage.
². Damage over time of 2 fired magazines and one quick reload in-between.
³. Total damage of carried ammo.
⁴. Equipping both the Auto and Minigun in your loadout increases the ammo capacity of each by 1 magazine (6 total, 3 each). Not considered in table. Does not work with Devastator.
⁵. The Minigun and PDWs fire 2 shots per 1 ammo; their fire rates are 20 shots and 40 shots per second respectively (in-game description inaccurate).
The Minigun has an additional 20% chance to penetrate enemies after 3 seconds of continuous firing. Not considered in table. Possibly stacks with Penetrating Rounds skill.
⁶. The GL deals 256 direct damage plus 80(+40) explosive damage per shot. The actual firing speed of the GL is 3 shots per second.
⁷. The Damage Bonus skill increases the damage of the Devastator, not the Autogun skill.
⁸. Cannot be boosted by Damage Amp. Actual fire rate is 9/s (not 2/s).

Gun Comparison Summary

The Grenade Launcher has the highest DPS but the lowest damage capacity. The Devastator has a higher max DPS than the Minigun and nearly the same damage capacity but cannot use Autogun ammo packs. The Minigun is perhaps the most sustainable single weapon, surely supplemented well by any combination of squad weapons for achieving higher damage.

Med-gun V. Beacon

The Heal Beacon heals approx. 6.66 HP/s and lasts for 20 seconds; and these values are the same for Bastille and Faith despite their different Healing skill. The heal rate of the Med-gun is also the same for both characters, at approx four times the rate of the Beacon, 24 HP/s. Two Beacons can stack to provide double healing and infestation curing, but do not stack beyond this (you can’t drop 3 or more beacons to achieve more than 13.33 HP/s, or anything higher than 24 HP/s etc.). The Med-gun and Beacon cannot stack either: thus the maximum heal rate between any combination of healing sources is 24 HP/s. The difference between the two characters is their heal power (HP healed per point of Med-gun ammo) and the starting capacity of their equipment.
Bastille starts with 8 Health Beacons or 80 Med-gun ammo; Faith, 9 Beacons and 90 Med-gun ammo. Each point of ammo for Bastille heals 8 HP, and Faith heals 10 HP per ammo point. This means that Bastille can potentially heal 640 HP with the Med-gun and 4262 HP with eight beacons; and as for Faith, 900 HP with the Med-gun and 4795 HP with nine beacons.
Infestation curing costs approximately 27 Med-gun ammo for Bastille, 18 for Faith on Brutal difficulty. This is 34% and 20% respectively of their total ammo capacity for each cure.
Addtl. Note: The Personal Healing Kit item restores 75 HP and is unaffected by the Medic Healing skill. Character health for reference:

  • 140 HP (Sarge)
  • 125 HP (Wolfe, Jaeger, Vegas)
  • 80 HP (Faith, Bastille, Crash, Wildcat)



When Bastile is on your squad the duration of adrenaline is increased to 20 seconds from approximately 13 seconds. The adrenaline meter scales visually with the width of the username who activates it; a longer or shorter meter does not indicate a different duration:
ASRD Tips & Tricks - Alien Swarm: Reactive Drop - Adrenaline - DC2D113A8
ASRD Tips & Tricks - Alien Swarm: Reactive Drop - Adrenaline - 50AEDED90


Crouching (holding Shift and standing still) significantly increases the accuracy of most weapons. Especially useful for the Minigun and Devastator.

Crash V. Vegas: Prototype Rifle

Crash deals more DPS (21%) and wastes less ammo with the Prototype Rifle than Vegas despite their weapon damage and firing rates with that weapon being inversely related.

Healing Kit V. Heavy Armor

You need to take 12 or more hits from a drone before the before the Heavy Armor begins paying off. Because Health Kits are more common in a level, one option might be to bring Heavy Armor and use Health Kits that you find.


Each point in Leadership increases the chance by 3% for shots to deal double damage or damage taken by hits to be halved. With Sarge on your team, you will deal twice as much damage and take half as much, 15% of the time; with Jeager, 9% of the time. The Grenade Launcher and Chainsaw are unaffected by the damage bonus.
Marines cannot die in 1 hit when their HP exceeds 1 HP. Thus if you have 2 HP you will take 2 hits before dying no matter how much damage the first hit does. This is a generic attribute and unrelated to Leadership. Notice the health bar in the video below: Sarge halves the damage of 2 hits on the first try, none on the second, and 4 hits on the third:


Written by dac

I hope you enjoy the ASRD Tips & Tricks – Alien Swarm: Reactive Drop guide. This is all for now! If you have something to add to this guide or forget to add some information, please let us know via comment! We check each comment manually!

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