Cortex naval composition: which ships to build and in what ratios

Players who pick Cortex for naval matches often hit the same wall. T1 light ships in the opening feel manageable, but the moment heavier units enter the fight, they do not know what to build next or how many of each. Here is the breakdown from experienced Cortex naval players.

Tags: Beyond All Reason, Cortex naval guide, BAR T1 submarines, BAR frigate, BAR destroyer, Cortex navy composition, naval ship ratios BAR, 5 frigate 1 destroyer, Beyond All Reason sea strategy

T1 submarines are your opening weapon

Cortex T1 submarines are one of the stronger tier-one naval options in BAR. They are stealthy underwater, which forces your opponent to commit to anti-sub units they may not want to build. In the early stages of a naval match, T1 subs let you harass enemy construction ships, pressure early shipyards, and scout without committing to a large surface fleet.

The key is timing. T1 subs are strongest before the opponent has enough sonar coverage or anti-sub frigates to counter them. Once they adapt, your subs lose their advantage and you need to transition to surface ships.

Build primarily frigates with a destroyer screen

The core Cortex naval playbook after the opening is simple: make primarily frigates, then add some destroyers on top. The ratio experienced Cortex players lean toward is five frigates to one destroyer.

Frigates are your bread and butter. They are cheap, versatile, and form the bulk of your surface combat power. Their weapons are effective against both ships and static naval defense, which means you do not have to specialize your fleet composition too early. Five frigates in a group can trade favorably with most mixed enemy compositions.

Destroyers fill a specific role. They bring heavier firepower and better durability than frigates, which matters in larger engagements where your frigate line starts to crack. The five-to-one ratio means you have enough destroyer punch without spending so many resources that your fleet becomes too slow to produce or too expensive to replace when you lose ships.

Why five frigates to one destroyer

The 5:1 ratio is not some rigid mathematical law. It is a rule of thumb that balances three factors:

• Production cost and speed. Frigates build faster and cost less. A fleet of mostly frigates means you can replace losses quickly. Destroyers take longer, so your fleet recovers slower if you go too heavy on them.
• Damage distribution. With five frigates, you spread incoming damage across more units, keeping individual ships alive longer. One destroyer cannot do this, and a fleet of only destroyers means fewer hulls to absorb hits.
• Flexibility. If you need to switch targets, frigates reposition faster. Destroyers commit to a fight and are harder to disengage without losing them.

This ratio holds up with about fifteen skill rating difference between you and your opponent. At larger gaps, positioning and economy matter more than exact ratios. At smaller gaps, the ratio gives you the consistency you need to win even engagements repeatedly.

Adjusting the composition mid-game

As naval matches scale into T2, the mix shifts. You may need to add cruisers for long-range bombardment, or anti-air ships if your opponent builds navy-focused bombers. The 5:1 frigate-to-destroyer ratio stays useful as the base layer, but you add specialized units on top of it.

If your opponent is stacking heavy ships, increase the destroyer proportion slightly. If they are going fast and light with lots of T1 ships, lean even harder into frigates and readjust your subs to target their builders. The composition is a starting point, not a fixed recipe you follow without looking at what the opponent is building.

Getting feedback on your naval games

If you want a mentor to review your naval matches, the process is the same as for any BAR game. Submit a replay with a clear description of what you are trying to improve. Include your in-game name if it differs from your forum or community name. Public matches upload automatically to the BAR website replay section.

Naval games are harder to review than land games because the positioning dynamics are less familiar to most players, so be specific about what confused you. Did you lose a fleet engagement you expected to win? Were your T1 subs countered faster than you anticipated? Did you not know what to build at T2? Specific questions get specific answers, and naval is an area where a good review can save you weeks of guessing.

Closing thoughts

Cortex naval comes down to a simple foundation: T1 subs for early pressure, mostly frigates for consistent surface fighting, and a destroyer for every five frigates to beef up your punch. From there, watch what your opponent builds and adjust. The players who improve at naval are the ones who submit replays, ask sharp questions, and learn from each engagement instead of queuing up the next match without reviewing what just happened.

Creed of Champions

Creed of Champions has players across all skill ranges and game modes, including dedicated naval specialists who teach composition and positioning. The community encourages asking questions about specific matchups and getting honest feedback without the ego that plagues many RTS spaces.

[Crd] It is so easy to get on with everyone and there is zero toxicity. Just fun games of BAR which can have quite a toxic community usually.

Serious RTS play without the toxic baggage. Whether you are learning frigate ratios for the first time or refining a complex multi-lane strategy, the community here supports genuine improvement.