Ok, there's a couple-three things you should know about how the game works vis a vis Assaults, and in general.
First, you are not going to be sneaking up on anyone in a giant metal bear. So there's that. Even with a 400XL engine, you just take too long to get anywhere. Remember, it's not just the speed you can get with any given engine; it's also the movement profile of the 'Mech. If you want a 100-tonner to try flanking with, you'll want a stealth armored D-DC Atlas, which isn't an optimal build for that chassis, but it's do-able.
Second, your weapons don't really work well together. Sure, you
can dumbfire that ATM into someone, but you're going to have to stare at them while you do it; The AC/20 does optimal damage out to 360m, and half damage at 540m. The HML does no damage at 540m, having reached its optimal range at 270m, and its half-damage point at 405m. That's not a deal-breaker if that was what you have, but then there's the ATM launcher (because what else can you do with just one missile hardpoint.) The ATMs will do their full damage close-in, but the missiles will spread all over the place, meaning that your time to kill will be lower than the damage numbers lead you to expect. So your ranges don't match up too well, and you're using lock-on weapons in conjunction with long cooldown weapons like the UAC and Heavy Laser.
And then, you have the combat endurance problem. In order to function in close range fights, you need to be able to keep firing - and your time to overheat is a mere
seven seconds. Finally, different types of TAG and Active Probes don't stack with each other - including the ECM-cancelling effects of Active Probes and ECM suites in Counter mode. If you throw more than one on a 'mech, you only get the bonus from the better system. If you combine an active probe with an ECM suite, you only get the sensor range boost.
If you want to deal an insane amount of damage on a Kodiak so that you can just core people out - sell that thing and take
Something Like This. Superior burst DPS with no scatter weapons, no heat scale penalties, and massive combat endurance (25 seconds without the ERMLs; use those to finish people, or discourage Lights; or simply trade them for more ammo.) There is literally no practical reason you'd want to deal with that particular Kodiak when better options are available for what you want to do.
Edit: Oh! I nearly forgot - Assault-class jump jets rather suck. It's the route PGI took to disabling the Poptart Meta back in the day. Class One jump jets are less like soaring into the sky on wings of flame than they are like being winched up a hillside by a crane. They're not worth dealing with the bad hardpoint distribution on this 'mech for doing what you want to do.
Edited by Void Angel, 20 April 2020 - 08:22 AM.