Ossiarch Bonereapers · battle formation

Mortek Ballistari: the artillery formation (AoS 4th Ed)

A niche gunline pick that sharpens Mortek Crawler firepower when they hold their ground.

Age of Sigmar 4th edition

BySprue Sentry

ReviewedJul 13, 2026

SourceHow to play Ossiarch Bonereapers, with Anthony from AoS Coach - Warhammer Community

Sprue Sentry strategy commentary for Age of Sigmar 4th edition, not official rules. Games Workshop updates points and rules regularly; always confirm against the current official rules and latest update before a game.

Mortek Ballistari specifically supports Mortek Crawler artillery, reported to grant +1 to hit when the Crawlers stay still in your own territory, for a limited number of Crawlers. It suits a static shooting build. Check the exact condition and Crawler cap in your current Battletome.

What the formation does

Reported to give Mortek Crawlers +1 to hit when they did not move and are within your own territory, up to a capped number of Crawlers. This makes a static gunline noticeably more accurate. Verify the condition, cap, and any other clauses in your Battletome.

Who it suits

Players who enjoy a shooting-forward build with multiple Crawlers parked at the back, screened by infantry, prioritising ranged damage over mobility.

Key units

Mortek Crawler (multiple, the whole point of the formation)
Mortek Guard to screen and protect the artillery
A Hero to generate Relentless Discipline points near the gunline

When to pick it

Choose it only when you are committing to two or more Crawlers and a static deployment. In a mobile or melee-focused list its narrow condition rarely triggers.

Common questions

Do the Crawlers have to stay still to benefit?

Reportedly yes - the bonus is tied to not moving and being in your own territory, which is why it favours a committed gunline. Confirm the exact wording in your Battletome.

How many Crawlers can benefit?

It is reported to be capped at a limited number of Crawlers, so there are diminishing returns on spamming them. Check the current Battletome for the precise cap.

Rules sources

Written by Sprue Sentry, grounded in the cited sources. Original commentary, not Games Workshop rules text.

Mortek Ballistari: the artillery formation (AoS 4th Ed)

A niche gunline pick that sharpens Mortek Crawler firepower when they hold their ground.

Age of Sigmar 4th edition

What the formation does

Who it suits

Players who enjoy a shooting-forward build with multiple Crawlers parked at the back, screened by infantry, prioritising ranged damage over mobility.

Key units

Mortek Crawler (multiple, the whole point of the formation)
Mortek Guard to screen and protect the artillery
A Hero to generate Relentless Discipline points near the gunline

When to pick it

Choose it only when you are committing to two or more Crawlers and a static deployment. In a mobile or melee-focused list its narrow condition rarely triggers.

Common questions

Do the Crawlers have to stay still to benefit?

Reportedly yes - the bonus is tied to not moving and being in your own territory, which is why it favours a committed gunline. Confirm the exact wording in your Battletome.

How many Crawlers can benefit?

It is reported to be capped at a limited number of Crawlers, so there are diminishing returns on spamming them. Check the current Battletome for the precise cap.

Written by Sprue Sentry, grounded in the cited sources. Original commentary, not Games Workshop rules text.