Simple topic what are your hopes for weapons and alt fires in the future of halo infinite now that they are a thing? Bellow are my two ideas based on some old games I have played, Yes one is based on CoD.
Ma5 /w 40mm
Information: A standard Ma5 with an anti personal secondary attachment in this case a m301 grenade launcher. Unlike the stand alone launcher this GL fires only 40mm dumb rounds which are impact detonation and blast.
Gameplay: is a standard on map weapon, its general function is to fire a grenade then use your gun to kill the target, good at dealing with groups in CQC situations.
Training: in training it will focus on grouped up enemies though its TTK is slower then using a shotgun for dealing with them.
Niche: Opening burst damage good for team matches, also allows a bit more explosives in the field
swords Plasma incinerator
Information: Do to worries about the flood returning The swords have designed and created several plasma flamethrowers using UNSC design principles combined with their own. The is a medium range flamethrower (max range is two warthogs in length, with an alternative mode that launchers plasma in an arc leaving pools of burning flame. (think of it as launching none EMP plasma pistol shots that have a small splash.)
gameplay: is area denial, in its primary form it is a good close range weapon, while its secondary mode allows for medium range path restriction.
Niche: Do what halo 3 failed at with its flamethrower, -Yoink!- do a video game flamethrower right, they have a medium range in gameplay and are mostly fear. In the case of games a DoT constant that can stop your shields is enough.