COACH COSMIC
Games, learning, careers and community—connected by decisions you can understand and use.
I’m Dejan Carlisle-Miller, Coach Cosmic. I built COS:CORE to turn experience into clear paths: improve at a game, learn a professional skill, build a career or understand the work behind it.
Start with your goal—not the site map. See original player reviews · Explore the documented competitive record
Each experience gathers the relevant tools, lessons and media into one path. You can move between them whenever your goal changes.
Brawlhalla foundations, Roof Rage footage, Tekken lab studies, decision maps and competitive review.
Read the fight ↗ 02 / SHOOTERSFPS ExperienceAwareness, positioning, communication, VOD review and transferable team decisions.
Read the field ↗ 03 / LEARNINGLearners ExperienceNetwork+ studies, credentials, structured notes and proof of applied understanding.
Build the knowledge ↗ 04 / CAREERS & PROGRAMSBusiness ExperienceResume building, esports jobs, coaching services, curriculum and sustainable program planning.
Build the opportunity ↗Start with a question, choose one experience, and leave with one observation worth carrying forward. Your private practice, saved materials and daily progress stay together in My Cosmic Profile.
Name the problem you are actually solving.
Use the experience that matches the question.
Test one response, not ten vague ideas.
Save the result and the next test.
Excerpts from my conversation with Rectify Esports, .
Watch the full interview · 7:16 ↗ More of my story ↗Taking a break from competing led to a deeper interest in learning the game and explaining it to others.
i was i competed for 2018 and 2019 and at the end of 2019 i took a break but i never took a break learning the game yeah i really found the passion in learning the game and explaining it in a very in-depth way which then made me partake in coaching and ever since then i've been coaching
Meet Cosmic, then explore the coaching, competitive play, and collaborations behind the work.
Explore the full media library ↗Come in with a question. Find something you can use.
Start with the handbook and original guides. See the competitive experience behind the lessons, then explore coaching when you’re ready to work on your own decisions.
Explore the approach, the examples, and the player feedback. Follow how the COS:CORE course pathway is developing.
See the professional-learning portfolio, the structure examples, and the eSpotz Academy partnership. Connect with me about coaching and curriculum work.
I’ve spent years competing, coaching, serving, and teaching. I still study because there is always another layer to understand. Every player I work with and every project I build gives me another reason to keep learning.
That continued enlightenment is part of what I’m putting into COS:CORE’s certification curricula. The experience and the education have to show up in the work.
I’m building toward what I want COS:CORE to one day be known as:
“The CompTIA of esports.”
I want people to know where to start, what to practice, and how to show they understand it. That is the direction: clear learning paths, work people can apply, and progress they can demonstrate.
Explore the learning behind the vision ↗I’m partnering with eSpotz Academy to bring COS:CORE into courses for competitive gamers. Years of coaching and building are becoming something more players can learn from.
Understand your decisions. Practice with purpose. Improve independently.
COS:CORE is live on eSpotz.
Open COS:CORE on eSpotz ↗ Read the partnership announcement ↗Players can find information everywhere. The part I care about is helping them understand what to do with it. COS:CORE is where I put that work together: coaching, practice, review, and a way to keep developing.
I built The Brawlhalla Handbook around the decisions players have to make: how to build routes, understand an opponent, practice execution, and stay disciplined when the match gets difficult.
A move is local.
A concept transfers.
A system scales.
See the structure behind the work, then hear from players who have worked with me.
View examples & testimonials ↗Explore the framework releases, coaching conversations, and education work I’m sharing on LinkedIn. The collection connects each post to the wider COS:CORE journey.
Explore LinkedIn highlights ↗Explore what I offer, historical Metafy Top Mentor recognition, student feedback, and the public record of my contributions to Brawlhalla education.
Explore my answers on coaching, ranked play, community, and AI. Then follow a simple six-part example of a learner turning commitment into a coaching plan they can explain.
Different platforms. Same person. You’ll find my coaching, guides, videos, projects, and professional work through these profiles.
This is where a lot of the public teaching started. Six Steam guides covering the game, the meta, the players, and how to work together in doubles.
44 likes · 20 reposts · 4,624 views
View original post on X ↗Our team has been building the baseline for esports tracking in the #brawlhalla scene.
Coach Cosmic (@CosmicBH) · 2026-03-18
Not a tool.
Not a tracker.
Not a website.
An entire esports operating system.
This is The Forge 🧵 👇
9 likes · 4 reposts · 742 views
View original post on X ↗dropping my COS:CORE BH course for free
Coach Cosmic (@CosmicBH) · 2026-08-19
neutral
punish game
flowcharts
strings
mental
adaptation
2s
edgeguards
training systems
50/50s
bunch of stuff i’ve built from years of coaching BH
rather people actually use it than have it sitting there
Engagement snapshots recorded October 16, 2026. Open the original posts for current counts.